Mounting structure of open fire section burner of non-oxidation annealing furnace

Abstract

The utility model discloses a mounting structure of an open fire section burner of a non-oxidation annealing furnace, which comprises an integrated burner unit, one side of the integrated burner unit is fixedly connected with an external burner unit, and the integrated burner unit is fixedly connected with an internal steel structure of a furnace body through the external burner unit; wherein the integrated burner unit is provided with a special lift truck, and the integrated burner unit is moved or upgraded through the special lift truck to be transported to a designated installation area; according to the utility model, the quick installation of the integrated burner unit is realized, a burner cast-in-place method adopted in the prior art is abandoned, the process difficulty of molding, demolding and the like is reduced, the construction period of burner installation and subsequent maintenance is greatly shortened, and the installation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of non-oxidizing annealing furnace equipment for galvanizing lines, and particularly relates to an installation structure of a burner in the open-flame section of a non-oxidizing annealing furnace. Background Art

[0002] The non-oxidizing annealing furnace for galvanizing lines mainly includes a preheating section, an open-flame section, a soaking section, a cooling section, a balancing section, an outlet section, etc. Among them, in the open-flame section, burners are used for ignition control to heat the strip steel with open flames to improve its mechanical properties. Specifically, burners are usually arranged in zones in the open-flame section, and the burners are generally fixed to the steel structure of the open-flame section furnace body by casting. During the production process, the burners may be damaged or cracked due to various factors. After the burners crack, the continuous open-flame high temperature will damage the external equipment of the burners, posing a safety hazard.

[0003] In the current technology regarding the repair of cracked burners, there is generally no dedicated equipment for repair. Instead, the entire burner support refractory is knocked out and the burner is recast. When casting the burner, anchor bolts need to be welded to the steel structure of the furnace body, and the mold-making process is complex, including support molds, burner molds, ignition rod molds, etc.; also due to factors such as the arrangement and position of the burners, one set of molds is only applicable to a single burner, and the remaining burners still need to be molded one by one, and they cannot be reused, and the repair period cannot be guaranteed; the process flow is complex, the construction period is long, and the cost is expensive.

[0004] Therefore, the applicant urgently needs to seek technical solutions to solve the above technical problems. Summary of the Invention

[0005] In view of this, the purpose of the utility model is to provide an installation structure of a burner in the open-flame section of a non-oxidizing annealing furnace, which realizes the rapid installation of an integrated burner unit, abandons the method of on-site casting of burners in the prior art, reduces the process difficulty of mold-making, demolding, etc., and greatly shortens the construction period of burner installation and subsequent maintenance, and reduces the installation and maintenance cost.

[0006] The technical solution adopted by the utility model is as follows:

[0007] An installation structure of a burner in the open-flame section of a non-oxidizing annealing furnace includes an integrated burner unit. One side of the integrated burner unit is fixedly installed and connected with an external burner unit, and is fixedly installed and connected with the internal steel structure of the furnace body through the external burner unit; wherein, the integrated burner unit is equipped with a special lifting vehicle, and the integrated burner unit is moved or lifted by the special lifting vehicle and transported to the designated installation area.

[0008] Preferably, the integrated burner unit is pre-cast and baked. Among them, a stainless-steel screw is cast on the end face of the integrated burner unit, which is used to cooperate with a nut for locking to realize the fixed locking cooperation between the integrated burner unit and the external burner unit.

[0009] Preferably, the number of the stainless-steel screws is 4 - 6; the specification of the stainless-steel screw is M16. Among them, the stainless-steel screw protrudes at least 50 mm outward along the bottom of the integrated burner unit.

[0010] Preferably, a high-temperature resistant graphite gasket is provided at the fixed installation connection between the external burner unit and the internal steel structure of the furnace body.

[0011] Preferably, the external burner unit and the internal steel structure of the furnace body are installed and locked in cooperation by bolts.

[0012] Preferably, the gaps of the installation structure are filled with heat-insulating materials.

[0013] Preferably, several perforations for the rod to pass through are respectively provided at the connection between the external burner unit and the internal steel structure of the furnace body and the integrated burner unit.

[0014] Preferably, the rod is a stainless-steel round rod, and the perforation is a round hole.

[0015] Preferably, the outer diameter range of the integrated burner unit is 650 - 750 mm, and its length range is 340 - 380 mm.

[0016] Preferably, a stainless-steel plate for cooperating with a jack is fixedly provided at the rear side of the special lifting vehicle.

[0017] This application proposes to use a preformed integrated burner unit and an external burner unit as the main structure of the open-flame section burner of the non-oxidizing annealing furnace. At the same time, a special lifting vehicle is configured for the integrated burner unit. The integrated burner unit is moved or upgraded by the special lifting vehicle and transported to the designated installation area to realize the rapid installation of the integrated burner unit, abandoning the burner on-site casting method adopted in the prior art, reducing the process difficulties such as mold making and demolding, greatly shortening the construction period of burner installation and subsequent maintenance, and reducing the installation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the installation structure of the open-flame section burner of the non-oxidizing annealing furnace under the specific embodiment of the present utility model;

[0019] Figure 2 is a schematic diagram of the installation process structure of the open-flame section burner of the non-oxidizing annealing furnace. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] An installation structure of a burner in the open flame section of a non-oxidizing annealing furnace according to an embodiment of the present utility model includes an integrated burner unit. An external burner unit is fixedly installed and connected to one side of the integrated burner unit, and is fixedly installed and connected to the internal steel structure of the furnace body through the external burner unit. Among them, the integrated burner unit is equipped with a special lifting vehicle, and the integrated burner unit is moved or upgraded by the special lifting vehicle and transported to a designated installation area.

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 and Figure 2 As shown, an installation structure of a burner in the open flame section of a non-oxidizing annealing furnace includes an integrated burner unit 1. An external burner unit 3 is fixedly installed and connected to one side of the integrated burner unit 1, and is fixedly installed and connected to the internal steel structure 7 of the furnace body through the external burner unit 3. Among them, the integrated burner unit 1 is equipped with a special lifting vehicle 6, and the integrated burner unit 1 is moved or upgraded by the special lifting vehicle 6 and transported to a designated installation area. Preferably, in this embodiment, the outer diameter of the integrated burner unit 1 ranges from 650 to 750 mm, and its length ranges from 340 to 380 mm. Specifically preferably, in this embodiment, the outer diameter of the integrated burner unit 1 is 700 mm, and its length is 360 mm.

[0023] Preferably, in this embodiment, the integrated burner unit 1 is pre-cast and baked. Among them, a stainless steel screw 2 is cast on the end face of the integrated burner unit 1 for locking and cooperating with a nut to realize the fixed locking cooperation between the integrated burner unit 1 and the external burner unit 3. Further preferably, in this embodiment, the number of screws of the stainless steel screw 2 is 4 to 6 (4 stainless steel screws 2 are specifically used in this embodiment); the specification of the stainless steel screw 2 is M16. Among them, the stainless steel screw 2 protrudes at least 50 mm outward along the bottom of the integrated burner unit 1. Specifically, in this embodiment: the stainless steel screw 2 protrudes 60 mm outward along the bottom of the integrated burner unit 1.

[0024] Specifically and preferably, in this embodiment, the integrated burner unit 1 uses a low-oxalic acid binder (a well-known material), which has the characteristics of thermal shock resistance and high-temperature oxidation resistance. It is pre-baked in advance according to the heating and baking curve, and its service life is much higher than that of the burner made by the on-site maintenance and casting process.

[0025] Preferably, in this embodiment, a high-temperature resistant graphite gasket 4 is provided at the fixed installation connection between the external burner unit 3 and the internal steel structure 7 of the furnace body (it should be noted to replace it after the installation and maintenance of the integrated burner unit 1 are completed); the external burner unit 3, the high-temperature resistant graphite gasket 4 and the internal steel structure 7 of the furnace body are installed and locked together by bolts 5 (specifically, M16 bolts are used).

[0026] Preferably, in this embodiment, the gaps in the installation structure of the non-oxidizing annealing furnace open-flame section burners are filled with heat-insulating materials; further, in this embodiment, the furnace wall masonry material of the furnace body is 23 lightweight mullite; the internal furnace wall heat-insulating material and the heat-insulating bricks are well-connected, and the internal furnace wall heat-insulating material can specifically be selected from fiber boards and fiber felts.

[0027] Preferably, for the sake of facilitating the quick installation and maintenance effect of the integrated burner unit 1, in this embodiment, several through holes for the rod body to pass through are respectively provided at the connection between the external burner unit 3 and the internal steel structure 7 of the furnace body and the integrated burner unit 1; specifically and preferably, in this embodiment, the rod body is a stainless steel round rod 8, and the through holes are round holes; a stainless steel plate 61 for cooperating with the jack 9 is fixedly provided (by welding) at the rear side of the special lifting vehicle 6.

[0028] Further preferably, in this embodiment, the bottom of the frame of the special lifting vehicle 6 is provided with universal wheels and directional wheels, which are convenient for manual pushing. Among them, the special lifting vehicle 6 can control the rising and falling functions through a hydraulic cylinder; during the specific implementation, the integrated burner unit 1 is hoisted into the furnace by a crane, transported to the position where the burner to be repaired (installed) is required by the special lifting vehicle 6; the stainless steel round rod 8 is passed through the external burner unit 3, the internal steel structure 7 of the furnace body and the integrated burner unit 1 and the burner hole of the furnace body, and the position of the integrated burner unit 1 is raised or lowered by the cooperation of the lifting of the special lifting vehicle 6 and the crane outside the furnace. The integrated burner unit 1 is pushed to the required installation position by the cooperation of the stainless steel plate 61 fixedly welded at the rear side of the special lifting vehicle 6 and the jack 9; the stainless steel screw 2 and the stainless steel nut are tightened, and a part of the thread is exposed (specifically, 45 mm can be exposed), and the installation of the integrated burner unit 1 is completed. Finally, the gaps are filled with heat-insulating materials.

[0029] This embodiment proposes that the preformed integrated burner unit 1 and the external burner unit 3 serve as the main structure of the open-flame section burner of the non-oxidizing annealing furnace. At the same time, a special lifting vehicle 6 is configured for the integrated burner unit 1. The integrated burner unit 1 is moved or upgraded by the special lifting vehicle 6 and transported to the designated installation area, realizing the rapid installation of the integrated burner unit 1, abandoning the burner on-site casting method adopted in the prior art, reducing the process difficulties such as mold making and demolding, greatly shortening the construction period of burner installation and subsequent maintenance, and reducing the installation and maintenance costs. Moreover, the integrated burner unit 1 provided in this embodiment is prefabricated and baked and cured according to the heating and baking curve, and the ignition and heating curve can be scientifically and effectively satisfied, greatly extending the service life of the burner.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mounting structure for a burner in an open flame section of a non-oxidation annealing furnace, characterized in that: It comprises an integrated burner unit, one side of which is fixedly connected to an external burner unit, and the external burner unit is fixedly connected to the internal steel structure of the furnace body through the external burner unit; wherein the integrated burner unit is equipped with a special lifting vehicle, and the integrated burner unit is moved or upgraded by the special lifting vehicle and transported to a designated installation area.

2. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: The integrated burner unit is pre-cast and baked, wherein a stainless steel screw is cast on the end surface of the integrated burner unit for locking with a nut to achieve fixed locking between the integrated burner unit and an external burner unit.

3. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 2 is characterized in that: The number of the stainless steel screws is 4-6; the specification of the stainless steel screws is M16, wherein the stainless steel screws protrude outwards by at least 50 mm along the bottom of the integrated burner unit.

4. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: A high temperature resistant graphite gasket is provided at the fixed installation connection between the external burner unit and the internal steel structure of the furnace body.

5. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: The external burner unit is installed and locked with the internal steel structure of the furnace body by bolts.

6. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: The gaps in the installation structure are filled with thermal insulation material.

7. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: The connection between the external burner unit and the internal steel structure of the furnace body and the integrated burner unit are respectively provided with a plurality of through holes for the rod body to pass through.

8. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 7 is characterized in that: The rod body is a stainless steel round rod, and the perforations are round holes.

9. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: The outer diameter of the integrated burner unit is in the range of 650-750 mm, and the length is in the range of 340-380 mm.

10. The installation structure of the burner of the open flame section of the non-oxidation annealing furnace according to claim 1 is characterized in that: A stainless steel plate for cooperating with a jack is fixedly provided on the rear side of the special lifting vehicle.

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