Modular steelmaking furnace installation method

Abstract

The application relates to the technical field of steelmaking equipment installation, and particularly discloses a modular steelmaking electric furnace installation method, which comprises the following steps: step S1, performing wire laying and checking of an electric furnace equipment foundation on the ground, and performing seat pulp gasketing; step S2, pre-assembling electric furnace equipment into multiple installation modules on the gasket area on the ground, wherein the installation modules comprise a tilting platform module, an electrode rotating rack module, a lower furnace shell module, an upper furnace shell module and a water-cooled furnace cover module; the electrode rotating rack module is integrated with a driving mechanism for driving the water-cooled furnace cover module to ascend and rotate; and step S3, hoisting the installation modules pre-assembled on the ground to an aerial installation position. According to the application, the modules are pre-assembled on the ground, and then multiple modules are hoisted to the air to be assembled in sequence, so that a large amount of aerial work is transferred to the ground, major safety hazards are eliminated from the source, and the construction period is shortened.

Description

Technical Field

[0001] This application relates to the field of steelmaking equipment installation technology, and in particular to a modular steelmaking electric furnace installation method. Background Technology

[0002] Electric arc furnaces (EAFs) are one of the core pieces of equipment in the modern steel industry. They are large and complex, comprising multiple subsystems including the furnace body, tilting platform, electrode lifting and rotation system, water cooling system, hydraulic system, and charging system. The EAF is typically mounted on a steel structure platform 10 meters or higher to facilitate the operation of the molten steel car and slag car below.

[0003] Traditionally, electric furnace installation requires construction companies to complete the foundation work on an operating platform approximately 10 meters high. Then, the furnace components are hoisted one by one to the high-altitude platform, where installers assemble them. This traditional method carries extremely high safety risks. Much of the work is conducted at heights exceeding 10 meters, involving various high-risk activities such as hot work, hoisting, and working near edges. The erection and dismantling of scaffolding is extensive, and the safety management of workers at height is extremely difficult, making accidents highly likely. Summary of the Invention

[0004] To reduce high-altitude operations and improve installation efficiency, this application provides a modular steelmaking electric furnace installation method.

[0005] The modular steelmaking electric furnace installation method provided in this application adopts the following technical solution: A method for installing a modular electric arc furnace for steelmaking includes the following steps: Step S1: Lay out and verify the foundation of the electric furnace equipment on the ground, install the mortar pad and define the corresponding pad area; Step S2: On the pad area on the ground, the electric furnace equipment is pre-assembled into multiple installation modules. The installation modules include a tilting platform module, an electrode rotating frame module, a lower furnace shell module, an upper furnace shell module, and a water-cooled furnace cover module. The electrode rotating frame module integrates a drive mechanism for driving the water-cooled furnace cover module to lift and rotate. Step S3: The pre-assembled installation modules on the ground will be hoisted to the high-altitude installation position in the following order: Step S31: Hoist the tilting platform module as a whole and place it in the high-altitude installation position; Step S32: The electrode rotating frame module is hoisted as a whole and installed on the tilting platform module; Step S33: Hoist the water-cooled furnace cover module and connect the water-cooled furnace cover module to the drive mechanism, so that the drive mechanism drives the water-cooled furnace cover module to move to a clearance position; Step S34: The lower furnace shell module is hoisted as a whole and installed on the tilting platform module; Step S35: The upper furnace shell module is hoisted as a whole and installed on the lower furnace shell module; Step S36: Drive the water-cooled furnace cover module to the furnace opening of the upper furnace shell module using the drive mechanism.

[0006] By adopting the above technical solution, this application transforms the traditional high-altitude assembly of disassembled parts into a ground-based modular prefabrication and high-altitude overall hoisting model. Firstly, by decomposing and pre-integrating the complex electric furnace system into multiple large functional modules in a spacious ground environment, the time spent on high-altitude operations is significantly reduced, eliminating numerous safety risks at the source. Secondly, high-altitude operations are simplified to a few large-module hoisting and docking operations, greatly accelerating the installation speed and shortening the project cycle. Finally, modular prefabrication on the ground provides ideal conditions for accurate measurement, high-quality welding, and system pre-commissioning, ensuring the installation quality of each module and thus improving the overall operational reliability of the electric furnace.

[0007] Optionally, in step S2, the step of forming the tilting platform module includes: pre-installing and integrating at least one of the following components onto the tilting platform on the ground: furnace cover anti-vibration device, weighing device, tilting platform guard plate, electrode rotation cylinder, rocker tilting cylinder, and extension platform.

[0008] By adopting the above technical solution, complex, high-precision, or cumbersome accessories such as furnace cover anti-vibration devices and weighing devices are pre-integrated onto the tilting platform module on the ground. The advantages of this approach are: it avoids the piecemeal and time-consuming installation of these components at height, further reducing the complexity and risk of high-altitude operations; ground-based installation allows for the use of more precise tools and measuring equipment to ensure the accuracy of high-precision components such as weighing devices; simultaneously, it enables the completion of pipeline connections and preliminary testing of components such as hydraulic cylinders on the ground, effectively reducing high-altitude pipeline work, ensuring connection quality and sealing, and significantly improving the installation efficiency and reliability of the core tilting platform module.

[0009] Optionally, in step S2, the step of forming the electrode rotating frame module includes: pre-installing and integrating at least one of the electrode rotating shaft, electrode rotating wheel, electrode column guide wheel, furnace cover lifting guide wheel, and furnace cover lifting beam onto the electrode rotating frame on the ground.

[0010] By adopting the above technical solution, this application integrates the core components of the furnace cover rotation and lifting transmission system, such as the rotating shaft, guide wheel, and lifting beam, into the electrode rotating frame with high precision at the ground stage. This ensures the inherent accuracy and smooth operation of the transmission system. On the other hand, by hoisting these components as a whole module, the on-site work is simplified, and only the module as a whole needs to be connected to the tilting platform, which helps to improve the installation efficiency of the electrode rotation and furnace cover lifting mechanism.

[0011] Optionally, in step S2, the step of forming the lower furnace shell module includes: pre-installing and integrating at least one of the bottom blowing assembly, the tapping port assembly, and the cap edge water-cooled panel onto the lower furnace shell on the ground.

[0012] By adopting the above technical solution, key functional components that directly affect the smelting process and furnace life, such as the bottom blowing system, tapping port, and cap edge water-cooled panel, can be pre-assembled with the lower furnace shell on the ground. This ensures the installation quality of these components that come into direct contact with molten steel or require precise alignment, such as the position and angle of the tapping port and the sealing of the bottom blowing elements, which are easier to guarantee on the ground. On the other hand, it also avoids difficult and dangerous operations such as welding and masonry inside the furnace at high altitude, thereby improving the installation quality and construction safety of the lower furnace shell.

[0013] Optionally, in step S2, the step of forming the upper furnace shell module includes: pre-installing and integrating at least one of the water-cooled plate, KT gun, slagging gate cylinder, slagging gate cooling block, and sand top assembly onto the upper furnace shell on the ground.

[0014] By adopting the above technical solution, this approach pre-integrates all the complex peripheral functional accessories of the upper furnace shell, such as large-area water-cooled plates, KT lances for oxygen blowing and decarburization, and frequently operated slagging door components, on the ground. The numerous water-cooled plates and their complex inlet and outlet water pipes can be installed and tested efficiently and reliably on the ground, avoiding large-scale high-altitude pipe welding and pressure testing. Secondly, the ground-based installation and commissioning of electromechanical-hydraulic integrated devices such as KT lances and slagging door cylinders ensures their flexibility and accuracy of operation, thereby improving the automation level and operational convenience of the electric furnace.

[0015] Optionally, in step S2, the step of forming the water-cooled furnace cover module includes: pre-installing at least one of the mobile hopper assembly, the receiving port assembly, and the water-cooled elbow onto the water-cooled furnace cover on the ground.

[0016] By adopting the above technical solution, this approach pre-integrates components related to furnace top charging and flue gas exhaust functions, such as the movable hopper, receiving port, and bulky water-cooled elbows, onto the water-cooled furnace cover on the ground. This greatly simplifies high-altitude operations, as the docking and welding of heavy components such as water-cooled elbows would be extremely difficult and dangerous to perform in the air. Completing this integration work on the ground not only ensures connection strength and sealing but also makes the entire water-cooled furnace cover module more functional. After being hoisted into place, it can more quickly realize its charging and flue gas exhaust functions, accelerating the entire installation process.

[0017] Optionally, step S36 further includes the following step: the driving mechanism drives the water-cooled furnace cover module to move to the top of the upper furnace shell module, and uses the center of the upper furnace shell module as a reference to perform preliminary centering of the geometric center of the water-cooled furnace cover module.

[0018] By adopting the above technical solution, this step uses the center of the already installed and fixed upper furnace shell module as a reference to perform coarse adjustment of the furnace cover. Its purpose is to provide a good initial position for subsequent precise alignment, ensure that there is a roughly uniform gap between the furnace cover and the furnace opening, and avoid the need for large-scale and time-consuming adjustments during subsequent fine adjustment due to excessive initial deviation.

[0019] Optionally, after step S36, the following steps are also included: S37. A small brick furnace cover is hoisted into the central opening of the water-cooled furnace cover and initially aligned. Using the electrode as a reference, the position of the small brick furnace cover is precisely aligned so that the electrode is accurately aligned with the electrode hole on the small brick furnace cover.

[0020] By adopting the above technical solution, after the main furnace cover is in place, the small furnace cover is first initially aligned. The purpose is to quickly fill the central void, ensure safety, and create a working surface for subsequent processes. Then, precise alignment is performed, using the final functional component electrode itself as the alignment reference. This method avoids the problem of misalignment between the electrode and the furnace cover hole caused by the cumulative tolerances of various large modules, ensuring smooth electrode lifting and lowering.

[0021] Optionally, in step S2, the assembly of the tilting platform module, the electrode rotating frame module, the lower furnace shell module, the upper furnace shell module, and the water-cooled furnace cover module are carried out in parallel in different ground operation areas.

[0022] By adopting the above technical solution and opening up multiple ground operation areas, the assembly of each functional module can be carried out simultaneously without interference. This allows numerous installation tasks that originally needed to be performed linearly and sequentially to be processed in parallel, greatly reducing the total prefabrication time of the equipment and thus significantly shortening the overall installation period of the electric furnace.

[0023] Optionally, a debugging step may be included between step S2 and step S3: The pre-assembled modules that have been assembled are subjected to key dimension verification, non-destructive testing of welds, and pre-testing of functional accessories. The pre-testing of functional accessories includes: pressure testing and pressure holding test of the hydraulic pipelines on the tilting platform module; and no-load operation test of the transmission mechanism on the electrode rotating frame module.

[0024] By adopting the above technical solutions, the key dimensions of the modules were verified before hoisting, ensuring a high success rate for high-altitude docking; non-destructive testing of welds ensured structural safety; and more importantly, pressure testing of hydraulic pipelines and trial operation of the transmission mechanism allowed potential functional defects such as leaks, interference, and malfunctions to be identified and resolved on the ground. This avoided difficult rework and repairs at high altitudes, greatly improving the final installation quality and first-time success rate, and ensuring stable operation of the equipment after it is put into production.

[0025] In summary, this application includes the following beneficial technical effects: 1. Modular prefabrication is first carried out on the ground, and then multiple modules are hoisted to the air for assembly in sequence, transferring a large amount of high-altitude work to the ground and eliminating major safety hazards from the source; modular parallel construction and simplified high-altitude procedures help to shorten the installation cycle; ideal working conditions on the ground and pre-commissioning ensure installation quality and reduce the failure rate after the equipment is put into production.

[0026] 2. This method decouples the complex electric furnace system into standardized functional modules. The integrated content of each module is clear and explicit, which facilitates the formation of standard operating procedures. This method is not only applicable to new electric furnace projects, but also provides a highly valuable solution for the rapid overhaul and upgrading of existing electric furnaces, and has good promotional value. Attached Figure Description

[0027] Figure 1 This is a process flow diagram of an embodiment of this application. Detailed Implementation

[0028] The following combination Figure 1 This application will be described in further detail.

[0029] This application discloses an installation method for a modular steelmaking electric furnace. (Refer to...) Figure 1 The modular steelmaking electric arc furnace installation method includes the following steps: Step S1: Lay out and verify the foundation of the electric furnace equipment on the ground, and install the mortar pad.

[0030] On the ground, the civil engineering foundation is constructed. Precise layout and verification are performed using surveying equipment such as theodolites and total stations to determine the centerline and elevation benchmarks for the anchor bolts. Subsequently, the grouting pads are installed at these benchmarks. The grouting pad installation is a highly precise, overlapping civil engineering and installation operation. Its purpose is to pour a layer of non-shrink grout onto the foundation surface and, before it solidifies, adjust the pre-embedded steel pads to a level and the precise designed elevation, thus serving as the foundation for subsequent installation.

[0031] Step S2: On the ground pad area, the electric furnace equipment is pre-assembled into multiple installation modules. The installation modules include a tilting platform module, an electrode rotating frame module, a lower furnace shell module, an upper furnace shell module, and a water-cooled furnace cover module. The electrode rotating frame module integrates a drive mechanism for driving the water-cooled furnace cover module to lift and rotate.

[0032] The assembly of the tilting platform module, electrode rotating frame module, lower furnace shell module, upper furnace shell module, and water-cooled furnace cover module is carried out in parallel in different ground operation areas.

[0033] In the first work area, the tilting platform module is assembled. The tilting platform is a massive cradle structure that supports the entire furnace body and electrode rotating frame. On the ground, the main steel structure of the tilting platform is first assembled and welded. Then, a series of complex functional accessories are integrated onto this platform. For example, a weighing device for precise metering during the smelting process is installed in a designated position on the tilting platform and calibrated; the electrode rotating cylinders responsible for driving the electrode rotating frame, and the cradle tilting cylinders that drive the entire platform to tilt for steel tapping and slag dumping, are installed and connected to the corresponding hydraulic lines. In addition, a tilting platform guard plate is installed to protect the platform and personnel, as well as an extension platform for convenient maintenance. These components are installed on the ground, ensuring convenient and safe operation and guaranteeing installation accuracy.

[0034] In the second work area, the electrode rotating frame module is assembled. The electrode rotating frame is the core drive unit controlling the rotation and lifting of the furnace cover. A large electrode rotating shaft is mounted onto the central bearing seat of the frame, and electrode rotating wheels for driving the rotation are assembled. Simultaneously, column guide wheels for smoothly guiding the electrode columns to rise and fall, and furnace cover lifting guide wheels for guiding the furnace cover itself to rise and fall, are installed in predetermined positions on the frame. Finally, the massive furnace cover lifting beam, which connects directly to the water-cooled furnace cover and is used to lift the furnace cover, is also integrated onto the frame. The relative positional accuracy of these transmission and guiding components requires high precision. In a spacious environment, measurement and adjustment can be easily performed to ensure that all guide wheels are coplanar and coaxial, guaranteeing smooth operation of the electric furnace.

[0035] In the third work area, the lower furnace shell module is assembled. The lower furnace shell is the lower half of the furnace chamber and is the main container for holding molten steel. The bottom blowing assembly is installed and fixed from the furnace bottom, ensuring its airtightness. The tapping port assembly is installed at the opening of the furnace shell. At the same time, the cap-edge water-cooled panel located on the upper edge of the lower furnace shell, which protects the furnace shell from high-temperature corrosion, is also welded and installed in place, and the corresponding cooling water pipes are connected.

[0036] In the fourth work area, the upper furnace shell module is assembled. The upper furnace shell is the upper part of the furnace chamber, and it has numerous external accessories. Large water-cooled plates are assembled in sections and welded to the outer wall of the upper furnace shell. KT spray guns responsible for oxygen blowing and slagging are inserted and fixed through the reserved openings. The slagging door cylinder that drives the opening and closing of the slagging door and its matching slagging door cooling block are installed near the slagging door opening. Finally, the sand top assembly used to seal the gap between the furnace shell and the furnace cover is also installed.

[0037] In the fifth work area, the water-cooled furnace cover module is assembled. The water-cooled furnace cover covers the furnace opening and integrates the feeding and exhaust devices. The movable hopper assembly for feeding from above is installed on the furnace cover's track. The receiving port assembly in the center of the furnace cover for receiving material from the hopper is installed. The water-cooled elbow, which is very large and heavy and is used to exhaust high-temperature flue gas, is precisely butt-welded to the exhaust port of the furnace cover on the ground.

[0038] After all modules are prefabricated, they are not immediately hoisted into place. Instead, a critical quality control step is taken: ground pre-commissioning.

[0039] Operators will conduct a final check on the key docking dimensions of each module to ensure that the interface dimensions between modules and between modules and the foundation meet the design requirements, thus guaranteeing smooth assembly at high altitudes. Simultaneously, all major load-bearing welds completed on the ground will undergo non-destructive testing using methods such as ultrasonic waves or X-rays to ensure welding quality.

[0040] More importantly, functional pre-commissioning is crucial. For example, the hydraulic piping system already connected to the tilting platform module is plugged into a temporary hydraulic pump station for pressure testing and long-term pressure holding tests to check for any leaks. The rotation drive and lifting guide components on the electrode rotating frame module can be connected to a temporary power supply for no-load operation testing to check for smooth transmission, abnormal noises, or jamming. Through this series of pre-commissioning steps, potential manufacturing defects and functional problems can be resolved at the ground stage.

[0041] Step S3: The pre-assembled installation modules on the ground will be hoisted to the high-altitude installation position in the following order: Step S31: Hoist the tilting platform module as a whole and place it in the high-altitude installation position.

[0042] Using a large crawler crane or overhead crane, the integrated tilting platform module is lifted as a whole and smoothly installed at a high altitude.

[0043] Step S32: The electrode rotating frame module is hoisted as a whole and installed on the tilting platform module.

[0044] The electrode rotating frame module, which is also integrated on the ground, is hoisted as a whole and accurately installed on the reserved base of the tilting platform module, and the connection of high-strength bolts is completed.

[0045] Step S33: Hoist the water-cooled furnace cover module and connect it to the drive mechanism, so that the drive mechanism drives the water-cooled furnace cover module to a clearance position.

[0046] The relatively independent water-cooled furnace cover module is hoisted. The hook precisely moves the furnace cover above the electrode rotating frame module, and operators connect the water-cooled furnace cover to the furnace cover lifting beam from above. After connection, operators in the ground control room can activate the drive mechanism to lift and rotate the water-cooled furnace cover module to a clearance position away from the center of the furnace opening. This is to clear the hoisting passage directly above the furnace body, facilitating subsequent assembly of the furnace shell module.

[0047] Step S34: The entire furnace shell module is hoisted and installed on the tilting platform module.

[0048] After the space above the furnace is cleared, the lifting equipment hoists the massive lower furnace shell module as a whole and precisely installs it on the furnace body support position preset by the tilting platform module.

[0049] Step S35: The upper furnace shell module is hoisted as a whole and installed on the lower furnace shell module.

[0050] The entire furnace shell module is hoisted and installed on top of the lower furnace shell module. The flanges between the upper and lower furnace shells are fastened together with bolts to form a complete furnace chamber.

[0051] Step S36: Drive the water-cooled furnace cover module to the furnace opening of the upper furnace shell module using the drive mechanism.

[0052] Once the furnace body is fully installed, the operator restarts the furnace cover drive mechanism, moving and lowering the water-cooled furnace cover module, which was previously positioned in a clearance location, to the furnace opening of the upper furnace shell module. At this point, preliminary alignment of the furnace cover is performed. Using the geometric center of the furnace shell as a visual or simple measurement reference, the installer adjusts the position of the water-cooled furnace cover by fine-tuning the drive mechanism or using temporary supports, jacks, and other tools, ensuring that the gap between the cover and the furnace opening is approximately uniform, thus completing the initial positioning.

[0053] Step S37: Hoist a small brick furnace cover into the center opening of the water-cooled furnace cover and perform preliminary centering; using the electrode as a reference, accurately align the position of the small brick furnace cover so that the electrode is accurately aligned with the electrode hole on the small brick furnace cover.

[0054] The process involves operators hoisting and placing a pre-fabricated refractory furnace cover into the large triangular opening in the center of the water-cooled furnace cover, ensuring its approximate centering. Subsequently, during the final equipment commissioning phase of the electric furnace installation, precise alignment of the small furnace cover is performed. At this point, the three graphite electrodes of the electric furnace are already installed on the electrode arms. Operators slowly raise and lower these three electrodes, allowing them to pass through the three electrode holes on the small furnace cover. Operators carefully observe the gap between the electrodes and the electrode hole walls from above the furnace cover. Uneven gaps indicate a deviation. Using dedicated adjusting bolts or hydraulic jacks installed under the small furnace cover, the cover is finely adjusted by translation or rotation. Repeated electrode raising and lowering is performed to verify this until each electrode maintains a high degree of concentricity with its corresponding electrode hole throughout the entire raising and lowering stroke. This step, using the functional components themselves as the final calibration benchmark, is the last and most crucial guarantee for the normal operation of the electric furnace.

[0055] The above are optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular steelmaking electric furnace installation method, characterized in that, Includes the following steps: Step S1: Lay out and verify the foundation of the electric furnace equipment on the ground, install the mortar pad and define the corresponding pad area; Step S2: On the pad area on the ground, the electric furnace equipment is pre-assembled into multiple installation modules, including a tilting platform module, an electrode rotating frame module, a lower furnace shell module, an upper furnace shell module, and a water-cooled furnace cover module. The electrode rotating frame module integrates a drive mechanism for driving the water-cooled furnace cover module to rise, fall, and rotate. Step S3: The pre-assembled installation modules on the ground will be hoisted to the high-altitude installation position in the following order: Step S31: Hoist the tilting platform module as a whole and place it in the high-altitude installation position; Step S32: The electrode rotating frame module is hoisted as a whole and installed on the tilting platform module; Step S33: Hoist the water-cooled furnace cover module and connect the water-cooled furnace cover module to the drive mechanism, so that the drive mechanism drives the water-cooled furnace cover module to move to a clearance position; Step S34: The lower furnace shell module is hoisted as a whole and installed on the tilting platform module; Step S35: The upper furnace shell module is hoisted as a whole and installed on the lower furnace shell module; Step S36: Drive the water-cooled furnace cover module to the furnace opening of the upper furnace shell module using the drive mechanism.

2. A modular steelmaking furnace installation method according to claim 1, characterized in that: In step S2, the step of forming the tilting platform module includes: pre-installing and integrating at least one of the following components onto the tilting platform on the ground: furnace cover anti-vibration device, weighing device, tilting platform guard plate, electrode rotation cylinder, rocker tilting cylinder, and extension platform.

3. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: In step S2, the step of forming the electrode rotating frame module includes: pre-installing and integrating at least one of the electrode rotating shaft, electrode rotating wheel, electrode column guide wheel, furnace cover lifting guide wheel and furnace cover lifting beam onto the electrode rotating frame on the ground.

4. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: In step S2, the step of forming the lower furnace shell module includes: pre-installing and integrating at least one of the bottom blowing assembly, the tapping port assembly, and the cap edge water-cooled panel onto the lower furnace shell on the ground.

5. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: In step S2, the step of forming the upper furnace shell module includes: pre-installing and integrating at least one of the following components onto the upper furnace shell on the ground: water cooling plate, KT gun, slagging gate oil cylinder, slagging gate cooling block, and sand material top assembly.

6. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: In step S2, the step of forming the water-cooled furnace cover module includes: pre-installing at least one of the mobile hopper assembly, the receiving port assembly, and the water-cooled elbow onto the water-cooled furnace cover on the ground.

7. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: In step S36, the following steps are also included: the driving mechanism drives the water-cooled furnace cover module to move to the top of the upper furnace shell module, and the geometric center of the water-cooled furnace cover module is initially aligned with the center of the upper furnace shell module as a reference.

8. The modular steelmaking electric furnace installation method according to claim 7, characterized in that: Following step S36, the following steps are also included: S37. A small brick furnace cover is hoisted into the central opening of the water-cooled furnace cover and initially aligned. Using the electrode as a reference, the position of the small brick furnace cover is precisely aligned so that the electrode is accurately aligned with the electrode hole on the small brick furnace cover.

9. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: In step S2, the assembly of the tilting platform module, the electrode rotating frame module, the lower furnace shell module, the upper furnace shell module, and the water-cooled furnace cover module are carried out in parallel in different ground operation areas.

10. The modular steelmaking electric furnace installation method according to claim 1, characterized in that: Between step S2 and step S3, a debugging step is also included: The key dimensions of each pre-assembled module that has been assembled are checked, the welds are inspected without damage, and the functional accessories are pre-tested. The pre-commissioning of the functional accessories includes: performing pressure tests and pressure holding tests on the hydraulic pipelines on the tilting platform module; The transmission mechanism on the electrode rotating frame module was subjected to a no-load operation test.

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