Modularized mounting method for online equipment of non-oriented silicon steel baking furnace

Abstract

The invention discloses a modular installation method for online equipment of a non-oriented silicon steel baking furnace. The modular installation method comprises the following steps that main line equipment of the baking furnace is modularly designed according to a production process; before the main line equipment of the baking furnace is installed, center lines in the longitudinal and transverse directions and elevation datum points are arranged in an installation basic plane area; the drying furnace section is installed in a modularized mode; carrying out modular installation on the curing furnace section; modular installation of the floating cooling section is carried out; according to the invention, the purpose of quickly mounting baking furnace equipment is achieved, and the equipment mounting and adjusting time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of the installation technology of baking furnace process equipment in a cold rolling product production line, and more specifically, to a modular installation method for on-line equipment of a non-oriented silicon steel baking furnace. Background Art

[0002] As an important production process facility in a cold rolling non-oriented silicon steel production unit, the role of the baking furnace is to complete the curing process of the coating in the previous process. The on-line equipment of the baking furnace is mainly installed on the FL±0.0m plane of the equipment foundation. The on-line equipment of the baking furnace consists of an inlet seal, a drying section, a curing section, a floating cooling section, and a cooling section, and the furnace length is 94m. The baking furnace has the characteristics of having many furnace sections, dense equipment pipelines, diverse structural and equipment structural forms, and high installation accuracy requirements. Therefore, the installation is difficult and the installation period is long. The installation of the on-line equipment of the baking furnace is the key and difficult point in the installation of the baking furnace area.

[0003] The traditional installation method for the on-line equipment of the baking furnace is as follows: First, install the furnace shells of each furnace section in place, adjust and then connect and fix them. Subsequently, construct the refractory insulation materials inside the furnace, and then install the in-furnace equipment such as heaters (open-flame burners or radiant heaters), floaters, air boxes, and furnace rolls.

[0004] The traditional method has a long construction time and low efficiency, and needs to be further optimized. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a modular installation method for on-line equipment of a non-oriented silicon steel baking furnace, so as to achieve the purpose of rapid installation of the baking furnace equipment and shorten the equipment installation and adjustment time.

[0006] The present invention adopts the following technical solutions:

[0007] A modular installation method for on-line equipment of a non-oriented silicon steel baking furnace includes the following steps:

[0008] (1) Modularly design the main-line equipment of the baking furnace according to the production process;

[0009] (2) Before installing the main-line equipment of the baking furnace, set the longitudinal and transverse centerlines and elevation reference points in the installation foundation surface area;

[0010] (3) Conduct modular installation of the drying furnace section;

[0011] (4) Conduct modular installation of the curing furnace section;

[0012] (5) Conduct modular installation of the floating cooling section;

[0013] (6) Conduct modular installation of the cooling section.

[0014] Further, the main line equipment of the baking furnace is divided into 4 furnace zones according to the production process, namely the drying zone, the curing zone, the floating cooling zone, and the cooling zone.

[0015] Further, the drying zone is divided into 5 infrared radiation drying furnaces, and each furnace chamber includes a structural frame under the furnace chamber, a furnace shell, furnace inner thermal insulation materials, gas heating infrared radiation equipment, a combustion control system device, and a flue gas pipeline;

[0016] The curing zone is divided into 6 furnace chambers, including 3 floating cooling furnaces I and 3 infrared radiation curing furnaces;

[0017] The floating cooling zone is divided into 7 furnace chambers, including 4 floating cooling furnaces II and 3 cooling devices I;

[0018] The cooling zone is divided into 3 furnace chambers, including 3 cooling devices II, 3 sets of deviation rectifying roller devices, and 1 set of outlet supporting rollers.

[0019] Further, the modular installation of the drying furnace section includes the steel structure frame at the bottom of the furnace chamber, the furnace shell, the infrared radiation equipment, the combustion control panel, and the installation of the auxiliary pipelines in the furnace chamber. The installation steps are as follows:

[0020] (11) First, install the structural frame under the drying furnace, adjust the installation accuracy of the frame according to the drawing dimensions and design accuracy requirements, and fix the bottom plate of the structural frame to the foundation surface through chemical bolt anchoring;

[0021] (12) Assemble the furnace shell body and the infrared radiation equipment at the off-line position. This step is carried out before or simultaneously with step (1) or step (11), and hoist the assembled furnace chamber as a whole onto the base of the structural frame under the furnace shell;

[0022] (13) Adjust the elevation of the furnace chamber by adding or reducing the adjustment gasket group at the connection between the furnace chamber and the structural frame, and adjust the center position and levelness of the furnace chamber by taking the furnace shell as a reference;

[0023] (14) Install the auxiliary pipelines and equipment in the furnace chamber;

[0024] (15) Install the combustion control panel, and then install the connecting components between the furnace chambers.

[0025] Further, the modular installation of the curing furnace section includes the structural support under the furnace chamber, the furnace chamber, the combustion control system device, the auxiliary pipelines and equipment in the furnace chamber, and the installation of the floating cooling furnace chamber. The installation steps are as follows:

[0026] (21) First, install the structural support under the furnace chamber;

[0027] (22) Assemble the curing furnace shell body and the infrared radiation equipment at the off-line position, and install them on the steel structure support under the furnace chamber after assembly;

[0028] (23) Install the floating cooling furnace chamber onto the fixed lower structural support;

[0029] (24) Check and adjust the elevation and center position of each furnace chamber. After fixing firmly, install the auxiliary pipes and equipment of the furnace chamber as well as the combustion control panel, and then install the connecting components between the furnace chambers.

[0030] Further, the modular installation of the floating cooling section includes the installation of the steel structural support at the bottom of the furnace chamber, the floating furnace chamber, the cooling device furnace chamber, the cooling air box, and the auxiliary pipes and equipment of the furnace chamber. The installation steps are as follows:

[0031] (31) First install the lower structural support of the furnace chamber;

[0032] (32) Assemble the cooling device furnace chamber and the cooling air box at the offline position and fix them temporarily and firmly;

[0033] (33) Install the floating cooling furnace chamber and the offline-assembled cooling device onto the structural support in sequence. Check and adjust the center position, elevation, and levelness of the furnace chamber, connect and fix firmly, and then install the auxiliary pipes and equipment of the furnace chamber.

[0034] Further, the modular installation of the cooling section includes the lower structural support of the furnace chamber, the cooling device furnace chamber, the cooling air box, the deviation rectifying roller installation frame, and the installation of the deviation rectifying roller. The installation steps are as follows:

[0035] (41) First install the lower structural support of the furnace chamber;

[0036] (42) Assemble the cooling device furnace chamber and the cooling air box at the offline position, and assemble the deviation rectifying roller installation frame and the deviation rectifying roller;

[0037] (43) Install the 3 sets of offline-assembled cooling devices and 3 sets of deviation rectifying rollers onto the lower structural support of the furnace chamber. Check and adjust the center position, elevation, and levelness of the furnace chamber, and check and adjust the perpendicularity of the deviation rectifying roller to the center line of the unit;

[0038] (44) Install the fixed idler at the outlet of the baking furnace and other accessories.

[0039] Beneficial effects

[0040] By preferentially adjusting the lower structural frame and support of the furnace chamber and then installing the upper furnace chamber after chemical bolt anchoring, compared with adjusting after the overall assembly of the furnace chamber, the structural frame, and the support, the labor intensity of workers can be reduced, the adjustment efficiency of the installation accuracy of the furnace chamber can be accelerated, the furnace chamber can be quickly corrected, and the operation efficiency is significantly improved.

[0041] The inner insulation construction of all furnace chambers that need to be internally insulated is completed before the equipment leaves the factory, without considering the on-site inner insulation construction of the furnace chamber, and the installation is efficient and fast.

[0042] Pre-assemble the drying furnace chamber and the infrared radiation heating device, the curing furnace chamber and the infrared radiation heating device, the cooling device furnace chamber and the cooling air box, the deviation rectifying roller installation frame and the deviation rectifying roller at the offline position, which can reduce the online hoisting and assembly operation procedures, optimize the construction process, and reduce the occupation of the construction site due to online assembly. Description of the Drawings

[0043] Figure 1 Schematic diagram of the modular segmentation of the main line equipment of the non-oriented silicon steel baking furnace in an embodiment of the present invention;

[0044] Figure 2 Installation flow chart in an embodiment of the present invention. Detailed Embodiments

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] As shown in the figure, the present invention discloses a modular installation method for the online equipment of a non-oriented silicon steel baking furnace, including the following steps:

[0047] (1) Modularly design the main line equipment of the baking furnace according to the production process, specifically as Figure 1 ;

[0048] (2) Before installing the main line equipment of the baking furnace, set the longitudinal and transverse centerlines and elevation reference points in the installation base surface area;

[0049] (3) Carry out modular installation of the drying furnace section;

[0050] (4) Carry out modular installation of the curing furnace section;

[0051] (5) Carry out modular installation of the floating cooling section;

[0052] (6) Carry out modular installation of the cooling section.

[0053] Through modular design, the present invention can achieve modular installation, reduce the online hoisting and assembly operation procedures, optimize the construction process, and reduce the occupation of the construction site due to online assembly.

[0054] Further, divide the main line equipment of the baking furnace into 4 furnace areas, namely the drying section, the curing section, the floating cooling section, and the cooling section, according to the production process. The zoning here is distinguished according to the operation process of the equipment to facilitate production.

[0055] Further, the drying section is divided into 5 infrared radiation drying furnaces 1, and each furnace chamber includes a structural frame 2 below the furnace chamber, a furnace shell, furnace internal thermal insulation materials, gas heating infrared radiation equipment, combustion control system equipment, and a flue gas pipeline;

[0056] The curing section is divided into 6 furnace chambers, including 3 floating cooling furnaces I 3 and 3 infrared radiation curing furnaces 5;

[0057] The floating cooling section is divided into 7 furnace chambers, including 4 floating cooling furnaces II 6 and 3 cooling devices I 7;

[0058] The cooling section is divided into 3 furnace chambers, including 3 cooling devices II 9, 3 sets of deviation rectifying roller devices 8, and 1 set of outlet supporting rollers 10.

[0059] Further, the modular installation of the drying furnace section includes the steel structure frame at the bottom of the furnace chamber, the furnace shell, infrared radiation equipment, a combustion control panel, and the installation of auxiliary pipelines in the furnace chamber. The steel structure frame at the bottom of the furnace chamber here is the structural frame 2 below the furnace chamber, and the installation steps are as follows:

[0060] (11) First, install the structural frame below the drying furnace. Adjust the installation accuracy of the frame according to the drawing dimensions and design accuracy requirements, and fix the bottom plate of the structural frame to the foundation surface through chemical bolt anchoring; this can reduce the labor intensity of workers, improve the adjustment efficiency of the installation accuracy of the furnace chamber, quickly correct the furnace chamber, and significantly improve the operation efficiency.

[0061] (12) Assemble the furnace shell body and the infrared radiation equipment at the off-line position. This step is carried out before or simultaneously with step (1) or step (11). Hoist the assembled furnace chamber as a whole onto the base of the structural frame below the furnace shell and connect and fix it firmly;

[0062] (13) Adjust the elevation of the furnace chamber by adding or reducing the adjustment gasket group at the connection between the furnace chamber and the structural frame, and at the same time check and adjust the center position and levelness of the furnace chamber;

[0063] (14) Install the auxiliary pipelines and equipment in the furnace chamber and connect and fix them firmly.

[0064] (15) Install the combustion control panel, and then install the connection components between the furnace chambers.

[0065] Further, the modular installation of the curing furnace section includes the structural support 4 below the furnace chamber, the furnace chamber, combustion control system equipment, auxiliary pipelines and equipment in the furnace chamber, and the installation of the floating cooling furnace chamber. The installation steps are as follows:

[0066] (21) First, install the structural support below the furnace chamber. The installation here is the same as step (11);

[0067] (22) Assemble the curing furnace shell body and the infrared radiation equipment at the off-line position. After assembly, install them on the steel structure support under the furnace chamber. The installation here is the same as in step (12).

[0068] (23)Install the floating cooling furnace chamber on the fixed lower structure support;

[0069] (24)Check and adjust the elevation and central position of each furnace chamber. After fixing firmly, install the auxiliary pipes and equipment of the furnace chamber and the combustion control panel, and then install the connecting components between the furnace chambers.

[0070] Furthermore, the modular installation of the floating cooling section includes the installation of the steel structure support at the bottom of the furnace chamber, the floating furnace chamber, the cooling device furnace chamber, the cooling air box, the auxiliary pipes and equipment of the furnace chamber. The installation steps are as follows:

[0071] (31)First install the lower structure support of the furnace chamber. The installation here is the same as in step (11);

[0072] (32)Assemble the cooling device furnace chamber and the cooling air box at the off-line position and fix them temporarily and firmly;

[0073] (33)Install the floating cooling furnace chamber and the pre-assembled cooling device at the off-line position on the structure support in sequence. Check and adjust the central position, elevation and levelness of the furnace chamber, connect and fix firmly, and then install the auxiliary pipes and equipment of the furnace chamber.

[0074] In an embodiment of the present invention, the modular installation of the cooling section includes the installation of the steel structure support under the furnace chamber, the cooling device furnace chamber, the cooling air box, the deviation rectifying roller installation frame, and the installation of the deviation rectifying roller. The installation steps are as follows:

[0075] (41)First install the lower structure support of the furnace chamber. The installation here is the same as in step (11);

[0076] (42)Assemble the cooling device furnace chamber and the cooling air box at the off-line position, assemble the deviation rectifying roller installation frame and the deviation rectifying roller, and fix them temporarily and firmly;

[0077] (43)Install the 3 sets of pre-assembled cooling devices and 3 sets of deviation rectifying rollers at the off-line position on the lower structure support of the furnace chamber. Check and adjust the central position, elevation and levelness of the furnace chamber, check and adjust the perpendicularity of the deviation rectifying roller to the center line of the unit, and connect and fix firmly;

[0078] (44)Install the fixed supporting roller at the outlet of the baking furnace and other accessories.

[0079] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. Method for modular installation of on-line equipment of non-oriented silicon steel baking furnace, characterized in that: It includes the following steps: (1) Modularly design the main equipment of the baking furnace according to the production process; (2) Before installing the main equipment of the baking furnace, set the center lines in the longitudinal and transverse directions and elevation reference points in the installation base area; (3) Conduct modular installation of the drying furnace section; (4) Conduct modular installation of the curing furnace section; (5) Conduct modular installation of the floating cooling section; (6) Conduct modular installation of the cooling section.

2. The modular installation method of the non-oriented silicon steel baking furnace online equipment according to claim 1, characterized in that: The main equipment of the baking furnace is divided into 4 furnace zones according to the production process: the drying zone, the curing zone, the floating cooling zone, and the cooling zone.

3. The modular installation method for online equipment of a non-oriented silicon steel baking furnace according to claim 2, characterized in that: The drying zone is divided into 5 infrared radiation drying furnaces, and each furnace chamber includes the structural frame below the furnace chamber, the furnace shell, the thermal insulation material inside the furnace, the gas heating infrared radiation equipment, the combustion control system equipment, and the flue gas pipeline; The curing zone is divided into 6 furnace chambers, including 3 floating cooling furnaces I and 3 infrared radiation curing furnaces; The floating cooling zone is divided into 7 furnace chambers, including 4 floating cooling furnaces II and 3 cooling devices I; The cooling zone is divided into 3 furnace chambers, including 3 cooling devices II, 3 sets of deviation rectifying roller devices, and 1 set of outlet supporting rollers.

4. The modular installation method for online equipment of a non-oriented silicon steel baking furnace according to claim 1, characterized in that: The modular installation of the drying furnace section includes the installation of the steel structure frame at the bottom of the furnace chamber, the furnace shell, the infrared radiation equipment, the combustion control panel, and the auxiliary pipelines of the furnace chamber. The installation steps are as follows: (11) First install the structural frame below the drying furnace, adjust the installation accuracy of the frame according to the drawing dimensions and design accuracy requirements, and fix the bottom plate of the structural frame to the base surface through chemical bolts; (12) Assemble the furnace shell body and the infrared radiation equipment at the off-line position. This step is carried out before or at the same time as step (1) or step (11), and hoist the assembled furnace chamber as a whole onto the base of the structural frame below the furnace shell; (13) Adjust the elevation of the furnace chamber with the furnace shell by adding or subtracting the adjustment gasket group at the connection between the furnace chamber and the structural frame, and at the same time check and adjust the center position and levelness of the furnace chamber; (14) Install the auxiliary pipelines and equipment of the furnace chamber; (15) Install the combustion control panel, and then install the connecting components between the furnace chambers.

5. The modular installation method for online equipment of a non-oriented silicon steel baking furnace according to claim 1, characterized in that: The modular installation of the curing furnace section includes the installation of the structural support below the furnace chamber, the furnace chamber, the combustion control system equipment, the auxiliary pipelines and equipment of the furnace chamber, and the floating cooling furnace chamber. The installation steps are as follows: (21) First install the structural support below the furnace chamber; (22) Assemble the furnace shell body of the curing furnace and the infrared radiation equipment at the off-line position, and install them on the steel structure support below the furnace chamber after assembly; (23) Install the floating cooling furnace chamber on the fixed structural support below; (24) Check and adjust the elevation and center position of each furnace chamber. After fixing firmly, install the auxiliary pipelines and equipment of the furnace chamber and the combustion control panel, and then install the connecting components between the furnace chambers.

6. The modular installation method of the non-oriented silicon steel baking furnace pipeline according to claim 1, characterized in that: The modular installation of the floating cooling section includes the installation of the steel structure support at the bottom of the furnace chamber, the floating furnace chamber, the cooling device furnace chamber, the cooling air box, and the auxiliary pipelines and equipment of the furnace chamber. The installation steps are as follows: (31) First install the structural support below the furnace chamber; (32) Assemble the cooling device furnace chamber and the cooling air box at the off-line position and fix them temporarily; (33) Install the floating cooling furnace chamber and the off-line assembled cooling devices on the structural support in sequence, check and adjust the center position, elevation, and levelness of the furnace chamber, connect and fix firmly, and then install the auxiliary pipelines and equipment of the furnace chamber.

7. The modular installation method of the non-oriented silicon steel baking furnace online equipment according to claim 1, characterized in that: The modular installation of the cooling section includes the structural support below the furnace chamber, the cooling device furnace chamber, the cooling air box, the guiding roller installation frame, and the guiding roller installation. The installation steps are as follows: (41) First install the structural support below the furnace chamber; (42) Assemble the cooling device furnace chamber and cooling air box in the offline position, and assemble the correction roller mounting frame and the correction roller; (43) Install the 3 sets of cooling devices and 3 sets of correcting rollers assembled offline on the structural support below the furnace chamber, check and adjust the center position, elevation and level of the furnace chamber, and check and adjust the verticality of the correcting rollers and the center line of the unit; (44) Install the baking oven outlet fixed rollers and other accessories.

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