Converter flue support structure and use method thereof

Abstract

The present invention relates to a converter flue support structure and a method of using the same, including a hinge support, a sliding support and a door frame support; the hinge support includes a support arm, a support plate, a bottom plate, a limit block and a connecting beam; the sliding support includes a crossbeam support, an inclined rail, a roller, a sliding support crossbeam, a sliding support column and a diagonal brace; the door frame support includes an outer crossbeam, an inner crossbeam, a longitudinal beam, a door frame support column, a supporting longitudinal beam and a supporting crossbeam; the door frame support is an inner and outer two-circle rectangular frame structure, the outer rectangular frame is composed of a longitudinal beam, an outer crossbeam and an inner crossbeam, the inner rectangular frame is composed of a supporting longitudinal beam and a supporting crossbeam, and door frame support columns are arranged at both ends of the longitudinal beam. The present invention increases the spacing between platform beams and improves the working conditions for flue installation; the movable hinge support and the sliding support structure not only meet the requirements of the flue's thermal expansion and deformation, but also realize the precise positioning and installation of the flue.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment installation, and in particular to a converter flue support structure and a use method thereof. Background Art

[0002] The converter flue is an important device for recovering waste heat from high-temperature flue gas during converter steelmaking. Due to its large deformation caused by thermal expansion, it is generally installed under the platform beam of the structural frame through a hanger. The hanger fixing method requires that the platform beam is located just above the flue hanging point, resulting in a narrow spacing between the platform beams, which is not conducive to the installation of the flue. Therefore, it is necessary to solve the above problem and design a supporting bracket structure and method. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a converter flue support structure and a method of using the same, which increases the spacing between platform beams and improves the flue installation working conditions; the movable hinge support and sliding support structure not only meet the requirements of the flue's thermal expansion and deformation, but also realize the precise positioning and installation of the flue.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide a converter flue support structure, including a hinge support, a sliding support and a door frame support; the hinge support includes a support arm, a support plate, a bottom plate, a limit block and a connecting beam, the bottom plate is a rectangular plate structure, the support plate has two pieces, the two support plates are vertically installed in parallel on the top of the bottom plate, an arm is installed between the two support plates, the limit block is a right-angled triangle block structure, the limit block is installed between the two support plates, the lower end face of the limit block is in contact with the bottom plate, the surface where the hypotenuse of the limit block is located is in contact with the support arm, and the free end of the support arm is installed with a connecting beam; the sliding support includes a crossbeam support, an inclined rail, and a roller. , sliding bracket crossbeam, sliding bracket column and diagonal brace, a sliding bracket column is vertically installed at both ends of the sliding bracket crossbeam, two crossbeam supports are installed side by side in the middle of the upper end of the sliding bracket crossbeam, the front end of the crossbeam support is provided with an inclined rail, a number of rollers are installed in the inclined rail, and the rear end of the sliding bracket crossbeam is connected with a diagonal brace; the door frame bracket includes an outer crossbeam, an inner crossbeam, a longitudinal beam, a door frame bracket column, a supporting longitudinal beam and a supporting crossbeam; the door frame bracket is an inner and outer rectangular frame structure, the outer rectangular frame is composed of a longitudinal beam, an outer crossbeam and an inner crossbeam, the inner rectangular frame is composed of a supporting longitudinal beam and a supporting crossbeam, and door frame bracket columns are arranged at both ends of the longitudinal beam.

[0005] As a supplement to the technical solution described in the present invention, ear shafts connected to the connecting beam and pin shafts connected to the bracket plate are respectively installed at both ends of the support arm.

[0006] As a supplement to the technical solution described in the present invention, the support arm is a trapezoidal plate structure, with circular holes opened at both ends and respectively matched with the ear shaft and the pin shaft.

[0007] As a supplement to the technical solution described in the present invention, the pin shaft is a cylindrical structure with slots at both ends, and a locking block matching the slots is installed on the bracket plate.

[0008] As a supplement to the technical solution described in the present invention, the bracket plate is a rectangular plate structure, a circular hole is opened in the middle, and the diameter of the circular hole is matched with the pin shaft.

[0009] As a supplement to the technical solution described in the present invention, the ear shaft is a cylindrical structure, which is installed in the middle of the connecting beam to form an integral structure therewith, a notch is opened at the end of the ear shaft, and a locking block matching the notch is installed on the support arm, and the notch is an annular groove structure. The locking block is a strip-shaped rectangular block structure.

[0010] As a supplement to the technical solution described in the present invention, the beam support is a right-angled trapezoidal block structure, the inclined rail is located on the inclined surface of the beam support, both sides of the inclined rail are provided with bosses, and the roller is a cylindrical structure, and the length of the roller is adapted to the bosses on both sides of the inclined rail.

[0011] As a supplement to the technical solution described in the present invention, a stopper is installed at the lower end of the inclined rail, and the stopper is a strip-shaped rectangular block structure.

[0012] As a supplement to the technical solution described in the present invention, a connecting bolt hole of a strip structure is opened on the top of the sliding bracket beam, and the connecting bolt hole is fixedly connected to the beam support through a connecting bolt.

[0013] A method for using a converter flue support structure, the specific operating steps are as follows:

[0014] Step 1: Installation of hinge bracket;

[0015] Install two bracket plates vertically on the top of the base plate, so that the two bracket plates are arranged in parallel and their central circular holes are coaxial, the distance between the two bracket plates is greater than the thickness of the support arm, take the center of the circular hole opened on the bracket plate as the horizontal adjustment center and the elevation positioning reference, take the midpoint of the distance between the two bracket plates as the longitudinal adjustment center, fix the two bracket plates and the base plate installed together on the top of the platform beam, and simultaneously install two sets of hinge brackets on both sides of the center of the flue, place the limit block between the two bracket plates, make the beveled surface of the limit block face the central opening of the bracket plate, and adjust the distance between the beveled surface of the limit block and the central circular hole of the bracket plate, so that after the support arm is in place, the side of the support arm is tightly fitted with the beveled surface of the limit block; the bracket plate and the limit block are welded and fixed on the top of the base plate, and the base plate is fixed to the platform beam by bolts;

[0016] Step 2: Installation of the sliding bracket;

[0017] Fix the sliding bracket beam under the platform beam through the sliding bracket column. During installation, the center line of the web of the sliding bracket beam steel structure is used as the horizontal positioning reference, the top wing plate of the sliding bracket beam steel structure is used as the elevation adjustment reference, and the midpoint of the sliding bracket beam is used as the longitudinal adjustment reference; install two sets of beam supports on both sides of the midpoint of the top of the sliding bracket beam, and the beam supports are fixed to the top of the sliding bracket beam by connecting bolts. The connecting bolt holes at the top of the sliding bracket beam are strip structures, which can enable the beam supports to move longitudinally at the top of the sliding bracket beam; install one end of the diagonal brace just below the beam support and between the upper and lower wing plates of the sliding bracket beam, and the other end of the diagonal brace is fixed to the platform beam;

[0018] Step 3: Install the lower flue;

[0019] Install the connecting beam of the hinge bracket between the annular ribs on both sides of the outer side of the lower flue, and make the ear shaft located in the middle of the connecting beam in a coaxial alignment state, install one end of the support arm on the ear shaft, install the locking block in the annular groove at the end of the ear shaft, and fix it to the side of the support arm so that the support arm can rotate freely around the ear shaft; install the lower flue, fix the other end of the support arm in the central circular hole of the two bracket plates with a pin shaft, and install the locking block in the notch at the end of the pin shaft and fix it to the side of the bracket plate so that the pin shaft is fixed and cannot rotate, and the side of the support arm is close to the limit block to complete the fixation of the lower part of the lower flue on the hinge bracket; at this time, the upper part of the lower flue is close to the sliding bracket, and the crossbeam support is pushed to make the rollers arranged on the inclined rail close to the lower flue, and the crossbeam support is fixed with a block to complete the positioning of the upper part of the lower flue;

[0020] Step 4: Install the outer frame of the door frame bracket;

[0021] Install one longitudinal beam of the door frame support and two door frame support columns together, fix them above the platform beam respectively, and connect the two longitudinal beams with the outer cross beam; project the longitudinal and transverse center lines of the flue on the longitudinal beam and the outer cross beam;

[0022] Step 5: Install the upper flue;

[0023] When installing the upper flue, first connect it to the lower flue, use the inner crossbeam to connect the longitudinal beams together, then install the supporting longitudinal beams and supporting crossbeams in sequence, and finally position the flue support above the supporting longitudinal beams and supporting crossbeams, adjust the position of the flue support according to the longitudinal and transverse center lines of the flue projected on the longitudinal beams and the outer crossbeams, complete the fixation of the upper flue, and finally install the central sliding bracket.

[0024] Beneficial effects: The present invention relates to a converter flue support structure and a method of using the same. The flue is installed and fixed by the support structure, which has the following advantages: 1. The platform beam arrangement spacing is increased, and the flue installation working conditions are improved; 2. The movable hinge support and the sliding support structure not only meet the requirements of the flue's thermal expansion and deformation, but also realize the precise positioning and installation of the flue; 3. The support structure has high strength and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the hinge bracket of the present invention;

[0026] Figure 2 is a schematic structural diagram of the sliding bracket of the present invention;

[0027] Figure 3 is a schematic structural diagram of the door frame bracket of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the hinge bracket and the sliding bracket of the present invention;

[0029] Figure 5 It is a schematic diagram of the installation of the lower flue of the present invention;

[0030] Figure 6 This is a schematic diagram of the installation of the door frame bracket of the present invention;

[0031] Figure 7 It is a schematic diagram of the installation of the upper flue of the present invention.

[0032] Illustration: 1. Hinge bracket, 11. Support arm, 12. Pin shaft, 13. Bracket plate, 14. Bottom plate, 15. Lock block, 16. Limit block, 17. Ear shaft, 18. Connecting beam, 2. Sliding bracket, 21. Crossbeam support, 22. Inclined rail, 23. Roller, 24. Stopper, 25. Sliding bracket crossbeam, 26. Sliding bracket column, 27. Diagonal brace, 3. Door frame bracket, 31. Outer crossbeam, 32. Inner crossbeam, 33. Longitudinal beam, 34. Door frame bracket column, 35. Support longitudinal beam, 36. Support crossbeam, 4. Lower flue, 5. Upper flue, 51. Flue support, 6. Platform beam. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0034] The embodiment of the present invention relates to a converter flue support structure and a method of using the same, such as Figure 1-7As shown, it includes a hinge bracket 1, a sliding bracket 2 and a door frame bracket 3; the hinge bracket 1 includes a support arm 11, a bracket plate 13, a bottom plate 14, a limit block 16 and a connecting beam 18, the bottom plate 14 is a rectangular plate structure, the support plate 13 has two pieces, the two support plates 13 are vertically installed in parallel on the top of the bottom plate 14, an arm 11 is installed between the two support plates 13, the limit block 16 is a right-angled triangle block structure, the limit block 16 is installed between the two support plates 13, the lower end face of the limit block 16 is in contact with the bottom plate 14, the surface where the hypotenuse of the limit block 16 is located is in contact with the support arm 11, and the free end of the support arm 11 is installed with a connecting beam 18; the sliding bracket 2 includes a beam support 21, an inclined rail 22, a roller 23, a sliding bracket beam 25, a sliding bracket column 26 and a diagonal brace 27, A sliding support column 26 is vertically installed at both ends of the sliding support beam 25, and two beam supports 21 are installed side by side in the middle of the upper end of the sliding support beam 25. The front end of the beam support 21 is provided with an inclined rail 22, and a plurality of rollers 23 are installed in the inclined rail 22. The rear end of the sliding support beam 25 is connected with a diagonal brace 27; the door frame bracket 3 includes an outer crossbeam 31, an inner crossbeam 32, a longitudinal beam 33, a door frame bracket column 34, a supporting longitudinal beam 35 and a supporting crossbeam 36; each component of the door frame bracket 3 is a steel structure, and the door frame bracket 3 is an inner and outer rectangular frame structure, the outer rectangular frame is composed of a longitudinal beam 33, an outer crossbeam 31 and an inner crossbeam 32, the inner rectangular frame is composed of a supporting longitudinal beam 35 and a supporting crossbeam 36, and door frame bracket columns 34 are arranged at both ends of the longitudinal beam 33.

[0035] The two ends of the support arm 11 are respectively provided with an ear shaft 17 connected to the connecting beam 18 and a pin shaft 12 connected to the bracket plate 13 .

[0036] The support arm 11 is a trapezoidal plate structure, with round holes at both ends respectively matched with the ear shaft 17 and the pin shaft 12.

[0037] The pin shaft 12 is a cylindrical structure with slots at both ends, and a locking block 15 matching the slots is installed on the bracket plate 13 .

[0038] The support plate 13 is a rectangular plate structure, with a circular hole in the middle thereof, and the diameter of the circular hole is adapted to the pin shaft 12 .

[0039] The ear shaft 17 is a cylindrical structure, which is installed in the middle of the connecting beam 18 to form an integral structure therewith, and a notch is provided at the end of the ear shaft 17, and a locking block 15 matching the notch is installed on the support arm 11, and the notch is an annular groove structure. The locking block 15 is a strip-shaped rectangular block structure.

[0040] The beam support 21 is a right-angled trapezoidal block structure, the inclined rail 22 is located on the inclined surface of the beam support 21, and bosses are provided on both sides of the inclined rail 22. The roller 23 is a cylindrical structure, and the length of the roller 23 is adapted to the bosses on both sides of the inclined rail 22.

[0041] A stopper 24 is installed at the lower end of the inclined rail 22, and the stopper 24 is a strip-shaped rectangular block structure.

[0042] A strip-shaped connecting bolt hole is provided on the top of the sliding bracket cross beam 25 , and the connecting bolt hole is fixedly connected to the cross beam support 21 through connecting bolts.

[0043] The sliding support cross beam 25, sliding support column 26 and diagonal brace 27 are all steel structures.

[0044] A method for using a converter flue support structure, the specific operating steps are as follows:

[0045] Step 1: Installation of hinge bracket 1;

[0046] The two bracket plates 13 are vertically installed on the top of the bottom plate 14, so that the two bracket plates 13 are arranged in parallel and their center circular holes are in a coaxial state, the distance between the two bracket plates 13 is greater than the thickness of the support arm 11, the center of the circular hole opened on the bracket plate 13 is used as the horizontal adjustment center and the elevation positioning reference, and the midpoint of the distance between the two bracket plates 13 is used as the longitudinal adjustment center, the two bracket plates 13 and the bottom plate 14 installed together are fixed on the top of the platform beam 6, and two sets of hinge brackets 1 are installed on both sides of the center of the flue at the same time, the limit block 16 is placed between the two bracket plates 13, so that the hypotenuse of the limit block 16 faces the central opening of the bracket plate 13, and the distance between the hypotenuse of the limit block 16 and the central circular hole of the bracket plate 13 is adjusted, so that after the support arm 11 is in place, the side of the support arm 11 is closely fitted with the hypotenuse of the limit block 16; the bracket plate 13 and the limit block 16 are welded and fixed to the top of the bottom plate 14, and the bottom plate 14 is fixed to the platform beam 6 by bolts;

[0047] Step 2: Installation of the sliding bracket 2;

[0048] The sliding bracket crossbeam 25 is fixed under the platform beam 6 through the sliding bracket column 26. During the installation, the center line of the web of the sliding bracket crossbeam 25 steel structure is used as the horizontal positioning reference, the top wing plate of the sliding bracket crossbeam 25 steel structure is used as the elevation adjustment reference, and the midpoint of the sliding bracket crossbeam 25 is used as the longitudinal adjustment reference; two groups of crossbeam supports 21 are installed on both sides of the midpoint of the top of the sliding bracket crossbeam 25, and the crossbeam support 21 is fixed to the top of the sliding bracket crossbeam 25 by connecting bolts. The connecting bolt hole located at the top of the sliding bracket crossbeam 25 is a strip structure, which can make the crossbeam support 21 move longitudinally at the top of the sliding bracket crossbeam 25; one end of the diagonal brace 27 is installed directly below the crossbeam support 21 and between the upper and lower wing plates of the sliding bracket crossbeam 25, and the other end of the diagonal brace 27 is fixed to the platform beam 6;

[0049] Step 3: Install the lower flue;

[0050] Install the connecting beam 18 of the hinge bracket 1 between the annular ribs on both sides of the outer side of the lower flue 4, and make the ear shaft 17 located in the middle of the connecting beam 18 in a coaxial alignment state, install one end of the support arm 11 on the ear shaft 17, install the lock block 15 in the annular groove at the end of the ear shaft 17, and fix it on the side of the support arm 11 so that the support arm 11 can rotate freely around the ear shaft 17; install the lower flue 4 and fix the other end of the support arm 11 to the center of the two bracket plates 13 with the pin shaft 12 The locking block 15 is installed in the notch at the end of the pin shaft 12 and fixed to the side of the bracket plate 13, so that the pin shaft 12 is fixed and cannot rotate. The side of the support arm 11 is close to the limit block 16 to complete the fixation of the lower part of the lower flue 4 on the hinge bracket 1; at this time, the upper part of the lower flue 4 is close to the sliding bracket 2, and the crossbeam support 21 is pushed to make the rollers 23 arranged on the inclined rail 22 close to the lower flue 4, and the crossbeam support 21 is fixed with the stopper 24 to complete the positioning of the upper part of the lower flue 4;

[0051] Step 4: Install the outer frame of the door frame bracket 3;

[0052] Install a longitudinal beam 33 of the door frame bracket 3 and two door frame bracket columns 34 together, fix them above the platform beam 6 respectively, and connect the two longitudinal beams 33 together with the outer cross beam 31; project the longitudinal and transverse center lines of the flue on the longitudinal beam 33 and the outer cross beam 31;

[0053] Step 5: Install the upper flue;

[0054] When installing the upper flue 5 in place, first connect it with the lower flue 4, use the inner crossbeam 32 to connect the longitudinal beam 33 together, then install the supporting longitudinal beam 35 and the supporting crossbeam 36 in sequence, and finally position the flue support 51 above the supporting longitudinal beam 35 and the supporting crossbeam 36, adjust the position of the flue support 51 according to the longitudinal and transverse center lines of the flue projected on the longitudinal beam 33 and the outer crossbeam 31, complete the fixation of the upper flue 5, and finally install the middle sliding bracket 2.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] The above is a detailed introduction to a converter flue support structure and a method of use thereof provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A converter flue support structure, characterized in that: It comprises a hinge bracket (1), a sliding bracket (2) and a door frame bracket (3); The hinge bracket (1) comprises a support arm (11), a support plate (13), a bottom plate (14), a limit block (16) and a connecting beam (18); the bottom plate (14) is a rectangular plate structure; the support plate (13) has two pieces; the two support plates (13) are vertically mounted in parallel on the top of the bottom plate (14); an arm (11) is mounted between the two support plates (13); the limit block (16) is a right-angled triangle block structure; the limit block (16) is mounted between the two support plates (13); the lower end surface of the limit block (16) is in contact with the bottom plate (14); the surface where the hypotenuse of the limit block (16) is located is in contact with the support arm (11); and the free end of the support arm (11) is mounted with a connecting beam (18); The sliding bracket (2) comprises a crossbeam support (21), an inclined rail (22), a roller (23), a sliding bracket crossbeam (25), a sliding bracket column (26) and an inclined brace (27), wherein a sliding bracket column (26) is vertically installed at both ends of the sliding bracket crossbeam (25), two crossbeam supports (21) are installed side by side in the middle of the upper end of the sliding bracket crossbeam (25), a front end of the crossbeam support (21) is provided with an inclined rail (22), a plurality of rollers (23) are installed in the inclined rail (22), and a rear end of the sliding bracket crossbeam (25) is connected to the inclined brace (27); The door frame bracket (3) comprises an outer crossbeam (31), an inner crossbeam (32), a longitudinal beam (33), a door frame bracket column (34), a supporting longitudinal beam (35) and a supporting crossbeam (36); the door frame bracket (3) is a rectangular frame structure with two circles, the outer rectangular frame is composed of the longitudinal beam (33), the outer crossbeam (31) and the inner crossbeam (32), the inner rectangular frame is composed of the supporting longitudinal beam (35) and the supporting crossbeam (36), and the two ends of the longitudinal beam (33) are provided with door frame bracket columns (34); Two ends of the support arm (11) are respectively provided with an ear shaft (17) connected to the connecting beam (18) and a pin shaft (12) connected to the bracket plate (13); The support plate (13) is a rectangular plate structure, with a circular hole opened in the middle thereof, and the diameter of the circular hole is adapted to the pin shaft (12); The ear shaft (17) is a cylindrical structure, and the ear shaft (17) is installed in the middle of the connecting beam (18) to form an integral structure therewith. A notch is provided at the end of the ear shaft (17), and a locking block (15) matching the notch is installed on the support arm (11), and the notch is an annular groove structure. The crossbeam support (21) is a right-angled trapezoidal block structure, the inclined rail (22) is located on the inclined surface of the crossbeam support (21), both sides of the inclined rail (22) are provided with bosses, and the roller (23) is a cylindrical structure, and the length of the roller (23) is adapted to the bosses on both sides of the inclined rail (22).

2. A converter flue support structure according to claim 1, characterized in that: The support arm (11) is a trapezoidal plate structure, with circular holes respectively opened at both ends and adapted to fit the ear shaft (17) and the pin shaft (12) respectively.

3. The converter flue support structure according to claim 1, characterized in that: The pin shaft (12) is a cylindrical structure with slots at both ends, and a locking block (15) matching the slots is installed on the bracket plate (13).

4. The converter flue support structure according to claim 1, characterized in that: A stopper (24) is installed at the lower end of the inclined rail (22), and the stopper (24) is a strip-shaped rectangular block structure.

5. The converter flue support structure according to claim 1, characterized in that: A connecting bolt hole of a strip structure is provided on the top of the sliding bracket crossbeam (25), and the connecting bolt hole is fixedly connected to the crossbeam support (21) via a connecting bolt.

6. The method for using the converter flue support structure according to claim 1, wherein the specific operating steps are as follows: Step 1: installing the hinge bracket (1); Two bracket plates (13) are vertically mounted on the top of the bottom plate (14), so that the two bracket plates (13) are arranged in parallel and their central circular holes are in a coaxial state, the distance between the two bracket plates (13) is greater than the thickness of the support arm (11), the center of the circular hole opened on the bracket plate (13) is used as the horizontal adjustment center and the elevation positioning reference, and the midpoint of the distance between the two bracket plates (13) is used as the longitudinal adjustment center. The two bracket plates (13) and the bottom plate (14) installed together are fixed on the top of the platform beam (6), and at the same time, they are respectively installed on both sides of the center of the flue. Install two sets of hinge brackets (1), place the limit block (16) between the two bracket plates (13), make the beveled surface of the limit block (16) face the central opening of the bracket plate (13), and adjust the distance between the beveled surface of the limit block (16) and the central circular hole of the bracket plate (13) so that after the support arm (11) is in place, the side of the support arm (11) and the beveled surface of the limit block (16) are closely fitted; the bracket plate (13) and the limit block (16) are welded and fixed to the top of the bottom plate (14), and the bottom plate (14) is fixed to the platform beam (6) by bolts; Step 2: Installation of the sliding bracket (2); The sliding bracket beam (25) is fixed to the bottom of the platform beam (6) through the sliding bracket column (26). During the installation, the center line of the web of the sliding bracket beam (25) steel structure is used as the horizontal positioning reference, the top wing plate of the sliding bracket beam (25) steel structure is used as the elevation adjustment reference, and the midpoint of the sliding bracket beam (25) is used as the longitudinal adjustment reference; two groups of beam supports (21) are installed in place on both sides of the midpoint of the top of the sliding bracket beam (25), and the beam support (21) is fixed to the top of the sliding bracket beam (25) by connecting bolts. The connecting bolt hole located at the top of the sliding bracket beam (25) is a strip structure, which allows the beam support (21) to move longitudinally at the top of the sliding bracket beam (25); one end of the diagonal brace (27) is installed directly below the beam support (21) and between the upper and lower wing plates of the sliding bracket beam (25), and the other end of the diagonal brace (27) is fixed to the platform beam (6); Step 3: Install the lower flue; Install the connecting beam (18) of the hinge bracket (1) between the annular ribs on both sides of the outer side of the lower flue (4), and make the ear shaft (17) located in the middle of the connecting beam (18) in a coaxial alignment state, install one end of the support arm (11) on the ear shaft (17), install the locking block (15) in the annular groove at the end of the ear shaft (17), and fix it on the side of the support arm (11), so that the support arm (11) can rotate freely around the ear shaft (17); install the lower flue (4), and fix the other end of the support arm (11) to the center circle of the two bracket plates (13) with a pin shaft (12). The locking block (15) is installed in the notch at the end of the pin shaft (12) and fixed to the side of the bracket plate (13), so that the pin shaft (12) is fixed and cannot rotate. The side of the support arm (11) is close to the limit block (16) to complete the fixation of the lower part of the lower flue (4) on the hinge bracket (1); at this time, the upper part of the lower flue (4) is close to the sliding bracket (2), and the crossbeam support (21) is pushed so that the rollers (23) arranged on the inclined rail (22) are close to the lower flue (4). The crossbeam support (21) is fixed with the stopper (24) to complete the positioning of the upper part of the lower flue (4); Step 4: Install the outer frame of the door frame bracket (3); A longitudinal beam (33) of the door frame bracket (3) and two door frame bracket columns (34) are installed together and fixed respectively above the platform beam (6), and the two longitudinal beams (33) are connected together by an outer cross beam (31); and the longitudinal and transverse center lines of the flue gas outlet are projected on the longitudinal beam (33) and the outer cross beam (31); Step 5: Install the upper flue; When installing the upper flue (5), first connect it with the lower flue (4), use the inner crossbeam (32) to connect the longitudinal beam (33), then install the supporting longitudinal beam (35) and the supporting crossbeam (36) in sequence, and finally position the flue support (51) above the supporting longitudinal beam (35) and the supporting crossbeam (36), adjust the position of the flue support (51) according to the longitudinal and transverse center lines of the flue projected on the longitudinal beam (33) and the outer crossbeam (31), complete the fixing of the upper flue (5), and finally install the middle sliding bracket (2).

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