Method for installing shell of rotary annealing furnace

Abstract

The invention discloses a shell mounting method of a rotary annealing furnace, and belongs to the technical field of annealing furnace equipment mounting. The mounting method comprises the steps that the position of each fixed stand column on the civil foundation is determined based on the central axis O of the annealing furnace unit, the number N of the supporting frames and the distance R1 between the fixed stand columns and the central axis O; the fixed stand columns are installed at the corresponding positions respectively; the overhanging stand column, the sliding stand column and the connecting beam are installed, it is guaranteed that the overhanging stand column, the sliding stand column, the connecting beam and the fixed stand column are located on the same straight line, and the straight line passes through the central axis O; determining the position of the upper bottom of the top plate on the connecting beam based on the distance R4 from the upper bottom of the top plate to the central axis O; the top plates are installed, and it is guaranteed that the extension lines of the two waist lines of each top plate pass through the central axis O; and the inner side plates and the outer side plates are installed, it is guaranteed that the included angle beta between every two adjacent inner side plates is equal, it is guaranteed that the included angle gamma between every two adjacent outer side plates is equal, and beta and gamma are equal.

Description

Technical Field

[0001] The present application belongs to the technical field of annealing furnace equipment installation, and in particular, relates to a method for installing a shell of a rotary annealing furnace. Background Art

[0002] The rotary annealing furnace is a large radius circular, intermittent rotary heat treatment furnace, which consists of a loading and unloading furnace section, a preheating section, a soaking section, a heating section, a soaking section and a cooling section. The furnace bottom rotates intermittently in a counterclockwise direction, and the crane in the span passes through the gap in the upper furnace body (natural air cooling section) to load and unload the steel coils. The installation center, radius detection, and thermal state changes of the equipment are different from those of the linear unit. Its equipment and process structure are compactly arranged, there are many circularly arranged equipment, and it is difficult to calibrate the center and angle of the equipment.

[0003] The outer shell of the rotary annealing furnace includes a support frame and a furnace shell assembly. The furnace shell assembly is installed on the support frame. The support frame supports and fixes the furnace shell assembly. The support frame and the furnace shell assembly together form a hollow ring structure. The support rail, guide rail, rotating stand, etc. of the rotary annealing furnace are located in the hollow ring structure.

[0004] In the related art, the installation accuracy of the shell of the rotary annealing furnace is poor, and on-site workers do not have a practical and efficient installation plan. There are problems such as low efficiency and poor accuracy during the construction process. Summary of the invention

[0005] The present application aims to at least to some extent solve the technical problem of poor installation accuracy of the shell of a rotary annealing furnace. To this end, the present application provides a method for installing the shell of a rotary annealing furnace.

[0006] The embodiment of the present application provides a method for installing the shell of a rotary annealing furnace, wherein the shell includes a plurality of support frames and a plurality of furnace shell components, wherein the support frames include fixed columns, cantilever columns, sliding columns and connecting beams, and the furnace shell components include inner side plates, outer side plates and a top plate, and the installation method includes:

[0007] Based on the central axis O of the annealing furnace unit, the number N of the support frames and the distance R1 of the fixed columns from the central axis O, determine the position of each fixed column on the civil foundation;

[0008] Installing each of the fixed columns at their respective positions;

[0009] Install the cantilever column, the sliding column and the connecting beam, and ensure that the cantilever column, the sliding column, the connecting beam and the fixed column are located on the same straight line, and the straight line passes through the central axis O;

[0010] Determine the position of the upper bottom of the top plate on the connecting beam based on the distance R4 between the upper bottom of the top plate and the central axis O;

[0011] Install the top plate, and ensure that the extension lines of the two waistlines of each top plate pass through the central axis O;

[0012] The inner plate and the outer plate are installed, and the angle β between two adjacent inner plates is ensured to be equal, and the angle γ between two adjacent outer plates is ensured to be equal, and β and γ are equal.

[0013] In some embodiments, determining the position of each of the fixed columns based on the central axis O of the housing, the number N of the support frames, and the distance R1 between the fixed columns and the central axis O includes:

[0014] Based on the number N of the support frames, determine the central angle α between two adjacent fixed columns;

[0015] Determine the position of the first fixed column on the civil foundation based on the position of the rotary annealing furnace entrance and the distance R1 between the fixed column and the central axis O;

[0016] Based on the position of the first fixed column, the central angle α between two adjacent fixed columns, and the distance R1 between the fixed column and the central axis O, the positions of other fixed columns on the civil engineering foundation are determined.

[0017] In some embodiments, the step of installing the cantilever column, the sliding column, and the connecting beam, and ensuring that a line connecting the cantilever column, the sliding column, the connecting beam, and the fixed column passes through the central axis O, comprises:

[0018] Determine the radius R2 of the circle where the sliding column is located based on the length L1 of the connecting beam and the radius R1 of the circle where the fixed column is located;

[0019] Based on the radius R2 of the circle where the sliding columns are located and the straight line passing through the fixed columns and the central axis O, the position of each sliding column on the civil foundation is determined;

[0020] Installing each of the sliding columns at their respective positions;

[0021] Installing the connecting beam on the sliding column and the fixed column;

[0022] The cantilever column is installed on the connecting beam.

[0023] In some embodiments, the step of installing the connecting beam on the sliding column and the fixed column includes:

[0024] placing the connecting beam between the fixed column and the sliding column;

[0025] Adjust the connecting beam so that the horizontality of the connecting beam meets the installation requirements and the connecting beam is located on the connecting line of the sliding support and the fixed support;

[0026] The connecting beam is fixed on the sliding column and the fixed column.

[0027] In some embodiments, the step of installing the cantilever column on the connecting beam comprises:

[0028] Based on the distance L2 between the cantilever column and the fixed column, determine the radius R3 of the circle where the cantilever column is located;

[0029] Based on the radius R3 of the circle where the cantilever column is located and the straight line passing through the sliding column and the central axis O, the position of each cantilever column on each connecting beam is determined;

[0030] The cantilever columns are fixed on their respective connecting beams.

[0031] In some embodiments, before fixing each of the cantilever columns to each of the connecting beams, the angle of the cantilever column is adjusted so that the verticality of the cantilever column meets the installation requirements.

[0032] In some embodiments, the step of installing the top plate and ensuring that the extension lines of the two waistlines of each top plate pass through the central axis O includes:

[0033] Based on the distance between the upper base of the top plate and the central axis O, determine the radius R4 of the circle where the upper base of the top plate is located;

[0034] Placing the top plate between two adjacent connecting beams, and making the upper bottom of the top plate be located on the circle;

[0035] Adjust the top plate so that both waists of the top plate pass through the central axis O and the horizontality of the furnace shell top plate meets the installation requirements;

[0036] The top plate is fixed on two adjacent connecting beams.

[0037] In some embodiments, the step of installing the inner panel and the outer panel and ensuring that the angle β between two adjacent inner panels is equal, and ensuring that the angle γ between two adjacent outer panels is equal, and β and γ are equal, comprises:

[0038] Calculating the values ​​of β and γ;

[0039] The inner plate and the outer plate are respectively placed between two adjacent fixed columns and sliding columns;

[0040] Adjust the inner plate and the outer plate so that the verticality of the inner plate and the outer plate meets the installation requirements, and the angle between two adjacent inner plates is β, and the angle between two adjacent outer plates is γ;

[0041] The inner plate is fixed on the cantilever column, and the outer plate is fixed on the sliding column.

[0042] In some embodiments, the housing further comprises a connecting beam;

[0043] The method for installing the shell of the rotary annealing furnace further includes installing a connecting beam, wherein the connecting beam is located between two adjacent fixed columns and two adjacent sliding columns and is connected to the two adjacent fixed columns and the two adjacent sliding columns.

[0044] In some embodiments, the housing further comprises a plurality of V-shaped sealing plates;

[0045] The method for installing the shell of the rotary annealing furnace further includes: installing a V-shaped sealing plate, wherein the V-shaped sealing plate is located between two adjacent inner plates and two adjacent outer plates, and is connected to the two adjacent inner plates and the two adjacent outer plates.

[0046] The present invention has at least the following beneficial effects:

[0047] The shell installation method of the rotary annealing furnace of the present invention divides the non-standard shell installation of the rotary annealing furnace into the support frame installation and the furnace shell component installation.

[0048] When installing the support frame, the fixed columns are installed first, and then the sliding columns, connecting beams and fixed columns are installed with the fixed columns as the installation reference, so that the fixed columns, sliding columns, fixed columns and connecting beams are respectively located on circles with the same central axis as the center but different radii, ensuring the concentricity of the fixed columns, sliding columns, fixed columns and connecting beams, and the connecting line of the cantilevered columns, sliding columns and connecting beams and the fixed columns on each support frame passes through the central axis O, so that the cantilevered columns, sliding columns and connecting beams and the fixed columns on each support frame are located on the same straight line, and the straight line passes through the central axis O, ensuring the installation accuracy of each support frame, so that after the installation of multiple support frames is completed, they are evenly arranged around the central axis O, ensuring that the center line of each support frame passes through the center of the unit, thereby ensuring the overall installation accuracy of the multiple support frames.

[0049] When installing the furnace shell assembly, the geometric characteristics of the top plate are combined to make it clear that when the top plate is installed, the extension lines of the two waistlines of the top plate pass through the central axis O of the fixed column, and the distance between the upper and lower parts of all top plates and the central axis O are consistent, so that the spacing between adjacent top plates is uniform. When installing the inner and outer plates, it is clear that the angles between the two adjacent inner plates are consistent, and the angles between the two adjacent outer plates are consistent, so that the spacing between the two adjacent inner plates is uniform, and the spacing between the two adjacent outer plates is also uniform.

[0050] According to the method provided by the present invention, the installation of the outer shell can ensure the accuracy of the installation of the support frame and the furnace shell assembly, improve the installation efficiency, and improve the installation quality. When the annealing furnace is hot, the support frame and the furnace shell assembly expand uniformly from the center of the unit to the outside, which can avoid the bending deformation caused by the uneven force of each support frame to a certain extent, which helps to extend the service life of the rotary annealing furnace and can avoid the refractory materials in the furnace from being subjected to force and cracking due to the uneven deformation of the inner plate, outer plate and top plate to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 A schematic top view of a rotary annealing furnace is shown.

[0053] Figure 2 Shown along Figure 1 Cross-sectional view along the AA direction.

[0054] Figure 3 A schematic diagram of the structure in which a V-shaped sealing plate connects an inner plate and an outer plate is shown.

[0055] Figure 4 A schematic diagram of the process of installing the shell of a rotary annealing furnace in one or more embodiments of the present application is shown.

[0056] Figure numerals: 100 - shell, 110 - support frame, 111 - fixed column, 112 - cantilever column, 113 - sliding column, 114 - connecting beam, 120 - furnace shell assembly, 121 - inner plate, 122 - outer plate, 123 - top plate, 124 - V-shaped sealing plate, 200 - civil foundation, 300 - support rail, 400 - guide rail, 500 - rotating platform. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0061] The rotary annealing furnace is a large radius circular, intermittent rotary heat treatment furnace, which consists of a loading and unloading furnace section, a preheating section, a soaking section, a heating section, a soaking section and a cooling section. The furnace bottom rotates intermittently in a counterclockwise direction, and the crane in the span passes through the gap in the upper furnace body (natural air cooling section) to load and unload the steel coils. The installation center, radius detection, and thermal state changes of the equipment are different from those of the linear unit. Its equipment and process structure are compactly arranged, there are many circularly arranged equipment, and it is difficult to calibrate the center and angle of the equipment.

[0062] The outer shell 100 of the rotary annealing furnace includes a support frame 110 and a furnace shell assembly 120. The furnace shell assembly 120 is installed on the support frame 110. The support frame 110 supports and fixes the furnace shell assembly 120. The support frame 110 and the furnace shell assembly 120 are combined to form a hollow ring structure. The support rail 300, the guide rail 400, the rotating platform 500, etc. of the rotary annealing furnace are located in the hollow ring structure.

[0063] In the related art, the shell of the rotary annealing furnace has a technical problem of poor installation precision. The embodiment of the present application provides a method for installing the shell of a rotary annealing furnace, which can at least solve the technical problem of poor installation precision of the shell of the rotary annealing furnace to a certain extent.

[0064] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0065] Please refer to Figure 1 and Figure 2 As shown, the shell installation method of the rotary annealing furnace is used to install the shell 100 of the rotary annealing furnace, and the shell 100 of the rotary annealing furnace includes a plurality of support frames 110 and a plurality of furnace shell assemblies 120. Each support frame 110 includes a fixed column 111, a cantilever column 112, a sliding column 113 and a connecting beam 114, and each furnace shell assembly 120 includes an inner plate 121, an outer plate 122 and a top plate 123.

[0066] Specifically, the sliding column 113 is located outside the fixed column 111, the connecting beam 114 is located between the fixed column 111 and the sliding column 113, and is located at the upper ends of the fixed column 111 and the sliding column 113, one end of the connecting beam 114 is connected to the fixed column 111, and the other end is connected to the sliding column 113, the cantilever column 112 is located between the fixed column 111 and the sliding column 113, and the cantilever column 112 is located below the fixed column 111, and its upper end is fixedly connected to the connecting beam 114. The structures of the sliding column 113, the fixed column 111, the cantilever column 112 and the connecting beam 114 are various, and are not limited in this application.

[0067] like Figure 4 As shown, the method for installing the shell 100 of the rotary annealing furnace includes steps S100, S200, S300, S400, S500 and S600. Among them, steps S100, S200 and S300 are about the installation of the support frame 110, and steps S400, S500 and S600 are about the installation of the furnace shell assembly 120.

[0068] The following is an introduction to the installation of the support frame 110:

[0069] Step S100 , based on the central axis O of the annealing furnace unit, the number N of the support frames 110 , and the distance R1 between the fixed columns 111 and the central axis O, the position of each fixed column 111 on the civil foundation 200 is determined.

[0070] Before performing step S100 , the operator should determine the central axis O of the annealing furnace unit, the number N of the support frames 110 , and the distance R1 between the fixed columns 111 of the support frames 110 and the center of the circle.

[0071] Step S100 may include step S110 , step S120 , and step S130 .

[0072] Step S110 , determining a central angle α between two adjacent fixed columns 111 based on the number N of the supporting frames 110 .

[0073] The shell 100 of the rotary annealing furnace is in a circular ring structure, and the fixed columns 111 are evenly distributed on the circumference. Each fixed column 111 is evenly stressed and deformed, which helps to ensure the consistency of deformation of the shell 100 of the rotary annealing furnace, thereby ensuring the stability of the structure of the shell 100 of the rotary annealing furnace.

[0074] The number N of the supporting frames 110 is the same as the number of the fixed columns 111 , that is, there is one fixed column 111 on each supporting frame 110 . If the number of the supporting frames 110 is N, then the number of the fixed columns 111 is also N.

[0075] After the multiple fixed columns 111 are fixed, they form a circle, and the central angle α can be calculated by the following formula: α=360° / (N-1). For example, if there are 21 fixed columns 111, the central angle α between two adjacent fixed columns 111 is 360° / (21-1)=18°.

[0076] Step S120 , determining the position of the first fixed column 111 on the civil foundation 200 based on the entrance position of the rotary annealing furnace and the distance R1 between the fixed column 111 and the central axis O.

[0077] In order to ensure that the material enters the rotary annealing furnace smoothly, the position of the fixed column 111 cannot interfere with the entrance position of the annealing furnace. It is easy to understand that the distance between the fixed column 111 and the central axis O is R1, so the fixed column 111 is located in a circle with O as the center and R1 as the radius. In this way, combined with the position of the entrance of the rotary annealing furnace, the position of the first fixed column 111 can be determined.

[0078] Step S130 , based on the position of the first fixed column 111 , the central angle α between two adjacent fixed columns 111 , and the distance R1 between the fixed column 111 and the central axis O, determine the positions of other fixed columns 111 on the civil foundation 200 .

[0079] After the position of the first fixed column 111 is confirmed, because the central angle α between two adjacent fixed columns 111 is obtained in step S110, and the distance R1 between the fixed column 111 and the central axis O is determined, the positions of other fixed columns 111 can be obtained in sequence by combining the position of the first fixed column 111, the central angle α between two adjacent fixed columns 111, and the distance R1 between the fixed column 111 and the central axis O.

[0080] Step S200: installing each fixed column 111 at its respective position.

[0081] After the positions of the fixed columns 111 are confirmed, the fixed columns 111 can be installed at their respective positions. Specifically, the lower ends of the fixed columns 111 are fixedly installed on the civil engineering foundation 200 .

[0082] It should be noted that after the fixed columns 111 are fixed, each fixed column 111 should be in a vertical state and the horizontality of the upper end surface of each fixed column 111 should meet the installation requirements. Therefore, before the lower end of the fixed column 111 is fixed to the civil engineering foundation 200, it is necessary to measure the verticality of the fixed column 111 and the horizontality of the upper end surface of the fixed column 111. If the verticality and horizontality of the fixed column 111 do not meet the requirements, the fixed column 111 should be adjusted. After adjusting to meet the requirements, the fixed column 111 can be fixed on the civil engineering foundation 200.

[0083] Step S200, installing the cantilevered columns 112, the sliding columns 113 and the connecting beams 114, and ensuring that the cantilevered columns 112, the sliding columns 113, the connecting beams 114 are located on the same straight line as the fixed columns 111, and the straight line passes through the central axis O.

[0084] After the fixed columns 111 are fixed at respective positions, the cantilevered columns 112 , the sliding columns 113 and the connecting beams 114 may be installed.

[0085] It should be noted that if Figure 1As shown, when looking down at the housing 100 from the top, the cantilevered columns 112, the sliding columns 113 and the connecting beams 114 are located on the same straight line as the fixed columns 111, and the straight line passes through the central axis O. In this way, the cantilevered columns 112, the sliding columns 113 and the connecting beams 114 on each support frame 110 are located on the same straight line as the fixed columns 111, and the straight line passes through the central axis O, thereby ensuring the installation accuracy of each support frame 110, so that after the multiple support frames 110 are installed, the multiple support frames 110 are evenly arranged around the central axis O.

[0086] Step S200 may include step S210 , step S220 , step S230 , step S240 , and step S250 .

[0087] Step S210 , based on the length L1 of the connecting beam 114 and the radius R1 of the circle where the fixed column 111 is located, determine the radius R2 of the circle where the sliding column 113 is located.

[0088] Specifically, the radius of the circle where the sliding column 113 is located is R2=R1+L1.

[0089] Step S220 , based on the radius R2 of the circle where the sliding columns 113 are located and the straight line passing through the fixed columns 111 and the central axis O, the position of each sliding column 113 on the civil foundation 200 is determined.

[0090] The intersection of the straight line passing through the fixed column 111 and the central axis O and the circle where the sliding column 113 is located is the position of each sliding column 113 on the civil engineering foundation 200. In this way, it is ensured that the line connecting the sliding column 113 and the fixed column 111 passes through the central axis O.

[0091] Step S230: Install each sliding column 113 at its respective position.

[0092] After the positions of the sliding columns 113 on the civil engineering foundation 200 are confirmed, the sliding columns 113 can be installed at their respective positions. Specifically, the lower ends of the sliding columns 113 are installed on the civil engineering foundation 200 .

[0093] It should be noted that after the sliding columns 113 are fixed, each sliding column 113 should be in a vertical state and the horizontality of the upper end surface of each sliding column 113 should meet the installation requirements. Therefore, before installing the lower end of the sliding column 113 on the civil engineering foundation 200, it is necessary to measure the verticality of the sliding column 113 and the horizontality of the upper end surface of the sliding column 113. If the verticality and horizontality of the sliding column 113 do not meet the requirements, they should be adjusted. After adjusting to meet the requirements, the lower end of the sliding column 113 can be installed on the civil engineering foundation 200.

[0094] Step S240 , fixing the connecting beam 114 on the sliding column 113 and the fixed column 111 .

[0095] After the positions of the fixed columns 111 and the sliding columns 113 are determined and the lower ends of the fixed columns 111 and the sliding columns 113 are installed on the civil engineering foundation 200 , the connecting beams 114 can be fixed on the sliding columns 113 and the fixed columns 111 .

[0096] Specifically, the connecting beam 114 is located at the upper end of the fixed column 111 and the sliding column 113, and is located between the fixed column 111 and the sliding column 113. Since the radius of the sliding column 113 is determined according to the length L1 of the connecting beam 114 and the radius R1 of the circle where the fixed column 111 is located, the distance between the fixed column 111 and the sliding column 113 can accommodate the connecting beam 114. Figure 2 As shown, the left end surface of the connecting beam 114 is fixedly connected to the right end surface of the sliding column 113 , and the right end surface of the connecting beam 114 is fixedly connected to the left end surface of the fixed column 111 .

[0097] Step S240 may include step S241 , step S242 , and step S243 .

[0098] Step S241 , placing the connecting beam 114 between the fixed column 111 and the sliding column 113 .

[0099] The connecting beam 114 is placed between the fixed column 111 and the sliding column 113 , with one end of the connecting beam 114 close to the sliding column 113 and the other end close to the fixed column 111 .

[0100] Step S242, adjusting the connecting beam 114 so that the horizontality of the connecting beam 114 meets the installation requirements and the connecting beam 114 is located on the connecting line of the sliding support and the fixed support.

[0101] If the horizontality of the connecting beam 114 does not meet the installation requirements, the top plate 123 subsequently installed thereon will have poor accuracy. Figure 1 As shown, when looking down at the housing 100 from the top, the connecting beam 114 is located on the line connecting the sliding support and the fixed support 111, and the line connecting the lines connecting the sliding support 113 and the fixed support 111 passes through the center of the circle. Therefore, the sliding column 113, the connecting beam 114 and the fixed column 111 are located on the same straight line, and the straight line passes through the center of the circle.

[0102] Step S243 , fixing the connecting beam 114 on the sliding column 113 and the fixed column 111 .

[0103] Step S250 , installing the cantilever column 112 on the connecting beam 114 .

[0104] The cantilever column 112 is fixed on the connecting beam 114. Therefore, when the connecting beam 114 is fixed, the cantilever column 112 can be fixed on the connecting beam 114. Specifically, the cantilever column 112 is located below the connecting beam 114, and the upper end of the cantilever column 112 is fixedly connected to the connecting beam 114.

[0105] Step S250 may include step S251 , step S252 , and step S253 .

[0106] Step S251 , based on the distance L2 between the cantilever column 112 and the fixed column 111 , determine the radius R3 of the circle where the cantilever column 112 is located.

[0107] Specifically, R3 = R1 + L2

[0108] Step S252 , based on the radius R3 of the circle where the cantilever column 112 is located and the straight line passing through the sliding column 113 and the central axis O, determine the position of each cantilever column 112 on each connecting beam 114 .

[0109] It should be noted that if Figure 1 As shown, when looking down at the housing 100 from the top, the intersection of the straight line passing through the fixed column 111 and the central axis O and the circle where the cantilever column 112 is located is the position of each cantilever column 112 on each connecting beam 114.

[0110] Step S253 , fixing each cantilever column 112 on its own connecting beam 114 .

[0111] After the positions of the cantilever columns 112 on their respective connecting beams 114 are confirmed, the cantilever columns 112 can be installed on their respective connecting beams 114 .

[0112] Before fixing each cantilever column 112 on each connecting beam 114, the angle of the cantilever column 112 is adjusted so that the verticality of the cantilever column 112 meets the installation requirements.

[0113] Specifically, the upper end of the cantilever column 112 is fixedly connected to the connecting beam 114. It should be noted that after the cantilever column 112 is fixed, each cantilever column 112 is in a vertical state. Therefore, before the cantilever column 112 is fixed, the verticality of the cantilever column 112 needs to be measured. If the verticality of the cantilever column 112 does not meet the requirement, it should be adjusted. After adjusting to meet the requirement, the cantilever column 112 is fixed to the connecting beam 114.

[0114] The following is an introduction to the installation of the furnace shell assembly 120:

[0115] Step S300 : determining the position of the upper bottom of the top plate 123 on the connecting beam 114 based on the distance R4 between the upper bottom of the top plate 123 and the central axis O.

[0116] It should be noted that the top plate 123 is in an isosceles trapezoidal shape, and a top plate 123 is disposed between each two adjacent connecting beams 114, and the top plate 123 is fixedly connected to the connecting beam 114. After the distance R4 between the upper bottom of the top plate 123 and the central axis O is determined, the position of the top plate 123 on the connecting beam 114 is determined.

[0117] Step S400: Install the top plate 123 and ensure that the extension lines of the two waistlines of the top plate 123 pass through the central axis O.

[0118] After the position of the top plate 123 on the connecting beam 114 is determined, the top plate 123 can be fixed between two adjacent connecting beams 114. Before fixing the top plate 123 on the connecting beam 114, the levelness and angle of the top plate 123 should be adjusted so that the levelness of the top plate 123 meets the specification requirements and both waists of the top plate 123 pass through the central axis O so that the spacing between adjacent top plates 123 is uniform.

[0119] Step S400 may include step S410, step S420 and step S440.

[0120] Step S410 , based on the position of the upper base of the top plate 123 from the central axis O, determine the radius R4 of the circle where the upper base of the top plate 123 is located.

[0121] It is easy to understand that the number of top plates 123 is consistent with the number of support frames 110, and there are a total of N top plates 123. This operation ensures that the tops of the N top plates 123 are on the same circle.

[0122] Step S420 , placing the top plate 123 between two adjacent connecting beams 114 , and making the upper bottom of the top plate 123 located on the circle.

[0123] Step S430, adjusting the top plate 123 so that both waists of the top plate 123 pass through the central axis O, and the horizontality of the furnace shell top plate 123 meets the installation requirements.

[0124] The structural dimensions of each top plate 123 are the same. After the top position of the top plate 123 is determined, the horizontality of each top plate 123 is ensured, and after the waistline of the top plate 123 passes through the central axis O, the lower parts of the N furnace shells are located on the same circle.

[0125] Step S440 , fixing the top plate 123 on two adjacent connecting beams 114 .

[0126] After the N top plates 123 are fixed, they are combined to form a ring structure, and the upper and lower tops thereof both form a regular N-gon. The installation accuracy of the top plates 123 is guaranteed, and the spacing between two adjacent top plates 123 is uniform.

[0127] Step S500, installing the inner panel 121 and the outer panel 122, and ensuring that the angle β between two adjacent inner panels 121 is equal, and ensuring that the angle γ between two adjacent outer panels 122 is equal, and β and γ are equal.

[0128] Specifically, there are N inner plates 121 and N outer plates 122. The inner plates 121 and the outer plates 122 are both arranged vertically, the inner plate 121 is located between two adjacent cantilever columns 112, the inner plate 121 is fixedly connected to the cantilever columns 112, and the outer plate 122 is located between two adjacent sliding columns 113, the outer plate 122 is fixedly connected to the sliding columns 113.

[0129] During the installation process, ensure that the angle β between two adjacent inner panels 121 is equal, that is, the angle between two adjacent inner panels 121 is equal, that is, β, so that N inner panels 121 form a regular N-gon, and the spacing between two adjacent inner panels 121 is uniform.

[0130] During the installation process, ensure that the angle γ between two adjacent inner panels 121 is equal, that is, the angle between two adjacent outer panels 122 is equal, both γ, so that N inner panels 121 form a regular N-gon, and the spacing between two adjacent outer panels 122 is also uniform.

[0131] Step S500 may include step S510, step S520 and step S550.

[0132] Step S510, calculating the values ​​of β and γ.

[0133] It is easy to understand that the number of inner plates 121 and outer plates 122 is the same, and both are enclosed in a positive N deformation, so β ​​and γ are equal. It is known that the calculation formula for the sum of the internal angles of the positive N deformation is equal to (N-2)×180°, so it can be obtained that: β=γ=[(N-2)×180°] / N, thereby calculating β and γ.

[0134] Step S520 , placing the inner plate 121 and the outer plate 122 between two adjacent fixed columns 111 and sliding columns 113 , respectively.

[0135] Step S530, adjusting the inner plate 121 and the outer plate 122 so that the verticality of the inner plate 121 and the outer plate 122 meets the installation requirements, and the angle between two adjacent inner plates 121 is β, and the angle between two adjacent outer plates 122 is γ.

[0136] Step S540 , fixing the inner plate 121 on the cantilever column 112 , and fixing the outer plate 122 on the sliding column 113 .

[0137] like Figure 3 As shown, in some embodiments, the housing 100 assembly further includes a V-shaped sealing plate 124. The V-shaped sealing plate 124 is used to seal the gap between two adjacent inner plates 121 and two adjacent outer plates 122. It is easy to understand that the number of the V-shaped sealing plates 124 is 2N. In some embodiments, the angle of the V-shaped sealing plate 124 is equal to the central angle α between the adjacent fixed columns 111.

[0138] In some embodiments, the method for installing the outer shell 100 of the annealing furnace further includes step S600.

[0139] Step S600, installing the V-shaped sealing plate 124, the V-shaped sealing plate 124 is connected to the two adjacent inner plates 121 and the outer plates 122, such as Figure 3 shown.

[0140] In some embodiments, the housing 100 further comprises a connecting beam. In these embodiments, the method for installing the housing 100 of the rotary annealing furnace further comprises a step 250 after the step 200 .

[0141] Step 250 , installing a connecting beam, where the connecting beam is located between two adjacent fixed columns 111 and two adjacent sliding columns 113 , and is connected to the two adjacent fixed columns 111 and the two adjacent sliding columns 113 .

[0142] The crossbeam connects two adjacent fixed columns 111 and two adjacent sliding columns 113 , so that the plurality of support frames 110 are connected to form an annular whole, so as to ensure the stability of the outer shell 100 of the annealing furnace.

[0143] In summary, the method for installing the shell 100 of the rotary annealing furnace of the present invention divides the installation of the non-standard shell 100 of the rotary annealing furnace into the installation of the support frame 110 and the installation of the furnace shell assembly 120 .

[0144] When the support frame 110 is installed, the fixed column 111 is installed first, and then the sliding column 113, the connecting beam 114 and the fixed column 111 are installed with the fixed column 111 as the installation reference, so that the fixed column 111, the sliding column 113, the fixed column 111 and the connecting beam 114 are respectively located on circles with the same point as the center but different radii, ensuring the concentricity of the fixed column 111, the sliding column 113, the fixed column 111 and the connecting beam 114. The connecting line of the beam 114 and the fixed column 111 passes through the central axis O, so that the cantilevered column 112, the sliding column 113 and the connecting beam 114 and the fixed column 111 on each supporting frame 110 are located on the same straight line, and the straight line passes through the central axis O, thereby ensuring the installation accuracy of each supporting frame 110. After the installation of multiple supporting frames 110 is completed, they are evenly arranged around the central axis O, ensuring that the center line of each supporting frame 110 passes through the center of the unit, thereby ensuring the overall installation accuracy of the multiple supporting frames 110.

[0145] When installing the furnace shell assembly 120, the geometric characteristics of the top plate 123 are combined, and it is clarified that when the top plate 123 is installed, the extension lines of the two waistlines of the top plate 123 pass through the central axis O of the fixed column 111, and it is clarified that the distance between the upper bottom of all top plates 123 and the central axis O is consistent, so that the spacing between adjacent top plates 123 is uniform. When installing the inner plate 121 and the outer plate 122, it is clarified that the angles between the two adjacent inner plates 121 are consistent, and the angles between the two adjacent outer plates 122 are consistent, so that the spacing between the two adjacent inner plates 121 is uniform, and the spacing between the two adjacent outer plates 122 is also uniform.

[0146] According to the method provided by the present invention, the housing 100 is installed, which can ensure the installation accuracy of the support frame 110 and the furnace shell assembly 120, improve the installation efficiency, and improve the installation quality. When the annealing furnace is hot, the support frame 110 and the furnace shell assembly 120 expand uniformly from the center of the unit to the outside, which can avoid the bending deformation caused by the uneven force of each support frame 110 to a certain extent, and can avoid the refractory materials in the furnace from being subjected to force and cracking due to the uneven deformation of the inner plate 121, the outer plate 122 and the top plate 123 to a certain extent.

[0147] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0148] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0149] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A method for installing a housing of a rotary annealing furnace, characterized in that: The housing (100) comprises a plurality of support frames (110) and a plurality of furnace shell assemblies (120), wherein the support frames (110) comprise fixed columns (111), cantilever columns (112), sliding columns (113) and connecting beams (114), and the furnace shell assemblies (120) comprise inner side plates (121), outer side plates (122) and a top plate (123), and the installation method comprises: Based on the central axis O of the annealing furnace unit, the number N of the support frames (110), and the distance R1 between the fixed columns (111) and the central axis O, determining the position of each fixed column (111) on the civil foundation (200); Installing each of the fixed columns (111) at their respective positions; Install the cantilever column (112), the sliding column (113) and the connecting beam (114), and ensure that the cantilever column (112), the sliding column (113), the connecting beam (114) and the fixed column (111) are located on the same straight line, and the straight line passes through the central axis O; Based on the distance R4 between the upper bottom of the top plate (123) and the central axis O, determine the position of the upper bottom of the top plate (123) on the connecting beam (114); Install the top plate (123) and ensure that the extension lines of the two waistlines of each top plate (123) pass through the central axis O; The inner plate (121) and the outer plate (122) are installed, and the angle β between two adjacent inner plates (121) is ensured to be equal, and the angle γ between two adjacent outer plates (122) is ensured to be equal, and β and γ are equal.

2. The method for installing the housing of a rotary annealing furnace according to claim 1, characterized in that: The determining the position of each fixed column (111) based on the central axis O of the housing (100), the number N of the support frames (110), and the distance R1 between the fixed column (111) and the central axis O comprises: Based on the number N of the support frames (110), determining the central angle α between two adjacent fixed columns (111); Based on the entrance position of the rotary annealing furnace and the distance R1 between the fixed column (111) and the central axis O, determining the position of the first fixed column (111) on the civil engineering foundation (200); Based on the position of the first fixed column (111), the central angle α between two adjacent fixed columns (111), and the distance R1 between the fixed column (111) and the central axis O, the positions of other fixed columns (111) on the civil engineering foundation (200) are determined.

3. The method for installing the housing of a rotary annealing furnace according to claim 1, characterized in that: The installation of the cantilever column (112), the sliding column (113) and the connecting beam (114), and ensuring that the connecting line of the cantilever column (112), the sliding column (113), the connecting beam (114) and the fixed column (111) passes through the central axis O, comprises: Determining the radius R2 of the circle where the sliding column (113) is located based on the length L1 of the connecting beam (114) and the radius R1 of the circle where the fixed column (111) is located; Based on the radius R2 of the circle where the sliding columns (113) are located and the straight line passing through the fixed columns (111) and the central axis O, the position of each sliding column (113) on the civil engineering foundation (200) is determined; Installing each of the sliding columns (113) at their respective positions; Installing the connecting beam (114) on the sliding column (113) and the fixed column (111); The cantilever column (112) is installed on the connecting beam (114).

4. The method for installing the housing of a rotary annealing furnace according to claim 3, characterized in that: The method of installing the connecting beam (114) on the sliding column (113) and the fixed column (111) comprises: placing the connecting beam (114) between the fixed column (111) and the sliding column (113); Adjusting the connecting beam (114) so ​​that the horizontality of the connecting beam (114) meets installation requirements and the connecting beam (114) is located on a line connecting the sliding support and the fixed support; The connecting beam (114) is fixed on the sliding column (113) and the fixed column (111).

5. The method for installing the housing of a rotary annealing furnace according to claim 3, characterized in that: The step of installing the cantilever column (112) on the connecting beam (114) comprises: Based on the distance L2 between the cantilever column (112) and the fixed column (111), determining the radius R3 of the circle where the cantilever column (112) is located; Based on the radius R3 of the circle where the cantilever column (112) is located and the straight line passing through the sliding column (113) and the central axis O, the position of each cantilever column (112) on each connecting beam (114) is determined; Each of the cantilever columns (112) is fixed to its own connecting beam (114).

6. The method for installing the housing of a rotary annealing furnace according to claim 5, characterized in that: Before each of the cantilever columns (112) is fixed to each of the connecting beams (114), the angle of the cantilever column (112) is adjusted so that the verticality of the cantilever column (112) meets the installation requirements.

7. The method for installing a housing of a rotary annealing furnace according to any one of claims 1 to 6, characterized in that: The step of installing the top plate (123) and ensuring that the extension lines of the two waistlines of each top plate (123) pass through the central axis O comprises: Determine the radius R4 of the circle where the upper base of the top plate (123) is located based on the distance between the upper base of the top plate (123) and the central axis O; Placing the top plate (123) between two adjacent connecting beams (114), and making the upper bottom of the top plate (123) located on the circle; Adjusting the top plate (123) so that both waists of the top plate (123) pass through the central axis O, and the horizontality of the furnace shell top plate (123) meets the installation requirements; The top plate (123) is fixed on two adjacent connecting beams (114).

8. The method for installing a housing of a rotary annealing furnace according to any one of claims 1 to 6, characterized in that: The step of installing the inner plate (121) and the outer plate (122) and ensuring that the angle β between two adjacent inner plates (121) is equal, and ensuring that the angle γ between two adjacent outer plates (122) is equal, and β and γ are equal, comprises: Calculating the values ​​of β and γ; The inner plate (121) and the outer plate (122) are respectively placed between two adjacent fixed columns (111) and sliding columns (113); Adjusting the inner plate (121) and the outer plate (122) so that the verticality of the inner plate (121) and the outer plate (122) meets the installation requirements, and the angle between two adjacent inner plates (121) is β, and the angle between two adjacent outer plates (122) is γ; The inner plate (121) is fixed on the cantilever column (112), and the outer plate (122) is fixed on the sliding column (113).

9. The method for installing a housing of a rotary annealing furnace according to any one of claims 1 to 6, characterized in that: The housing (100) further comprises a connecting beam; The method for installing the shell of the rotary annealing furnace further comprises installing a connecting beam, wherein the connecting beam is located between two adjacent fixed columns (111) and two adjacent sliding columns (113), and is connected to the two adjacent fixed columns (111) and the two adjacent sliding columns (113).

10. The method for installing a housing of a rotary annealing furnace according to any one of claims 1 to 6, characterized in that: The housing (100) further comprises a plurality of V-shaped sealing plates (124); The method for installing the shell of the rotary annealing furnace further comprises: installing a V-shaped sealing plate (124), wherein the V-shaped sealing plate (124) is located between two adjacent inner plates (121) and two adjacent outer plates (122), and is connected to the two adjacent inner plates (121) and the two adjacent outer plates (122).

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