Method of installing electrolysis plant ventilator framework

Abstract

The present application relates to the technical field of ventilator installation, in particular to a kind of electrolytic workshop ventilator framework installation method, the method divides ventilator framework into several units, sets up assembling site at workshop end portion to assemble, and is transported to installation position along roof support steel beam by movable platform;Movable platform is equipped with liftable support seat, locking mechanism and sliding mechanism, and realizes the stable hoisting, accurate positioning and efficient movement of framework unit in combination with traction equipment;The present application has the advantages that the use cost of large-tonnage crane is significantly reduced, and the construction efficiency in narrow space is improved;Modular assembly and movable platform design simplify the installation process;The method is economical and practical, and has strong operability, which provides an efficient solution for the installation of ventilators in similar workshops.

Description

Technical Field

[0001] This invention relates to the field of ventilator installation technology, specifically a method for installing a ventilator frame in an electrolysis workshop. Background Technology

[0002] The electrolysis workshop is the core facility in the production of electrolytic aluminum. Its special production process requires the workshop to be designed with a long and narrow structure to facilitate the straight arrangement of electrolytic cells and continuous production. However, this long and narrow structure brings significant challenges to the installation of roof ventilators. Traditional installation methods usually require the use of large-tonnage cranes on both sides of the workshop for hoisting, which is not only expensive to rent, but also limited by the space constraints of surrounding buildings (such as sloping bridges, duty rooms, etc.), resulting in low construction efficiency and increased costs.

[0003] Therefore, there is an urgent need for an installation method that can complete the hoisting of the ventilator frame from one side of the workshop and efficiently transport it to the installation location, in order to overcome the shortcomings of existing technologies, reduce construction costs, and improve installation efficiency and quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a method for installing a ventilator frame in an electrolysis workshop. By dividing the frame into units, setting up a moving platform and traction equipment, efficient and low-cost installation is achieved for narrow workshops.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A method for installing a ventilator frame in an electrolysis workshop includes the following steps:

[0007] Step 1: Divide the ventilator frame into several frame units; level the assembly area on the ground outside the first end of the electrolysis workshop; arrange two supporting steel beams at intervals on the roof of the electrolysis workshop, with the supporting steel beams arranged along the length of the roof and the spacing between the two supporting steel beams matching the width of the frame unit; install a movable platform on the supporting steel beam, the movable platform including a liftable support seat, a locking mechanism on the liftable support seat, and a sliding mechanism at the bottom of the liftable support seat, the sliding mechanism being able to slide along the supporting steel beam;

[0008] Step 2: Assemble the frame units at the assembly site;

[0009] Step 3: Slide the mobile platform to one end near the assembly site, use hoisting equipment to hoist the frame unit onto the mobile platform, and lock the bottom connecting rod of the frame unit with the locking mechanism; the mobile platform moves the assembled frame unit to the preset installation position;

[0010] Step 4: Lower the liftable support base, place the assembled frame unit onto the support steel beam, and weld and fix the support steel beam to the support uprights of the frame unit.

[0011] Step 5: Disassemble the mobile platform and reinstall it onto the supporting steel beam near the assembly site.

[0012] Step Six: Repeat steps two through five until the final skeleton unit is hoisted. The final skeleton unit to be installed is the one closest to the assembly site. Remove the mobile platform and hoist the final skeleton unit directly into place using hoisting equipment. Weld the supporting steel beams to the supporting poles of the last skeleton unit for fixation.

[0013] As a preferred embodiment, a further technical solution of the present invention is:

[0014] Preferably, it also includes step seven: after all the skeleton units are welded and fixed to the supporting steel beams, a transverse stiffening rib is welded between the two supporting steel beams.

[0015] Preferably, in step three, when the mobile platform moves the frame unit, it is moved by a traction device. The traction device includes a winch installed on the side or ground of the electrolysis workshop and a pulley block fixed on one end opposite the first end of the roof of the electrolysis workshop. The wire rope on the winch turns around the pulley block and is connected to the mobile platform.

[0016] Preferably, the liftable support base includes a support plate and two adjusting screws. The adjusting screws pass through the support plate and are locked by a first adjusting nut and a second adjusting nut. The first adjusting nut is located on the upper side of the support plate, and the second adjusting nut is located on the lower side of the support plate. The locking mechanism includes two stops spaced apart on the support plate. Locking screws are threadedly connected to the stops, and abutment joints are provided at opposite ends of the locking screws. The sliding mechanism includes two connecting blocks spaced apart vertically. The connecting blocks are provided with adjusting holes, through which the adjusting screws pass. Traveling wheels are also rotatably connected to the connecting blocks. A third adjusting nut and a fourth adjusting nut are threadedly connected to the adjusting screws. The third adjusting nut is located above the upper connecting block, and the fourth adjusting nut is located below the lower connecting block. The supporting steel beam is made of I-beam. By adjusting the third and fourth adjusting nuts, the two traveling wheels press against the lower and upper surfaces of the upper flange of the I-beam, respectively, forming a rolling contact pair.

[0017] Preferably, the support plate is provided with a disassembly guide groove, wherein the adjusting screw can be moved radially into or out of the mounting hole of the support plate along the disassembly guide groove.

[0018] Preferably, the assembly site is equipped with an assembly platform for assembling the skeleton units.

[0019] Preferably, each skeleton unit includes N intermediate skeletons, where 2≤N≤6; in step two, the assembly of the skeleton units includes: positioning and hoisting: using hoisting equipment to hoist the first intermediate skeleton to the first positioning point of the assembly platform, and then hoisting the second intermediate skeleton to the second positioning point, with the distance between the two positioning points consistent with the design span; connecting rods: installing bottom connecting rods and top connecting rods between the first and second intermediate skeletons to form a stable truss structure; iterative expansion: when N is greater than or equal to 3, repeating steps 1-2, hoisting the 3rd to Nth intermediate skeletons in sequence, with each newly added skeleton connected to the previous skeleton through bottom connecting rods and top connecting rods, finally forming an intermediate frame containing N skeletons; arc-shaped keel installation: symmetrically installing arc-shaped keels on both sides of the intermediate frame.

[0020] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0021] This application achieves efficient and precise installation of ventilators in narrow electrolysis workshops by dividing the ventilator frame into several units and assembling them at the assembly site, combined with a mobile platform and traction equipment, which significantly reduces the operating cost of traditional large-tonnage cranes. The design of the liftable support base and locking mechanism of the mobile platform ensures stable transportation and flexible adjustment of the frame units. This method is economical, safe, and operable, and effectively solves the technical problems of ventilator installation in the special environment of electrolysis workshops. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure during the assembly of the intermediate skeleton in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the arc-shaped keel installation structure in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure when the mobile platform drives the skeleton unit to move in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the skeleton unit moving into place in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the traction equipment arrangement in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the mobile platform in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the traction device in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 1. Assembly platform; 2. Intermediate frame; 201. Supporting upright; 3. Top connecting rod; 4. Bottom connecting rod; 5. Curved keel; 6. Roof; 7. Supporting steel beam; 8. Moving platform; 801. Support plate; 8011. Disassembly guide groove; 802. Adjusting screw; 803. Connecting block; 804. Traveling wheel; 805. Stop block; 806. Locking screw; 807. Abutment joint; 9. Lifting equipment; 10. Winch; 11. Pulley block; 12. Wire rope. Detailed Implementation

[0030] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0031] like Figures 1 to 7 As shown in the figure, this embodiment provides a method for installing the frame of a ventilator in an electrolysis workshop, including the following steps:

[0032] Step 1: Divide the ventilator frame into several frame units; level the assembly area on the ground outside the first end of the electrolysis workshop; arrange two supporting steel beams 7 at intervals on the roof 6 of the electrolysis workshop, with the supporting steel beams 7 arranged along the length of the roof 6, and the spacing between the two supporting steel beams 7 matching the width of the frame unit; install a movable platform 8 on the supporting steel beam 7, the movable platform 8 including a liftable support seat, a locking mechanism on the liftable support seat, and a sliding mechanism at the bottom of the liftable support seat, the sliding mechanism being able to slide along the supporting steel beam 7.

[0033] Specifically, the liftable support base includes a support plate 801 and two adjusting screws 802. The adjusting screws 802 pass through the support plate 801 and are locked by a first adjusting nut and a second adjusting nut. The first adjusting nut is located on the upper side of the support plate 801, and the second adjusting nut is located on the lower side of the support plate 801. The locking mechanism includes two stops 805 spaced apart on the support plate 801. Locking screws 806 are threaded onto the stops 805. An abutment 807 is provided at one end of each locking screw 806. When the locking screws 806 are rotated so that the abutment 807 abuts against the bottom connecting rod 4 of the frame unit, the locking mechanism locks. Bottom connecting rod 4; the sliding mechanism includes two connecting blocks 803 spaced apart vertically, each with an adjustment hole. An adjustment screw 802 passes through the adjustment hole, and a traveling wheel 804 is rotatably connected to the connecting block 803. A third adjusting nut and a fourth adjusting nut are threaded onto the adjustment screw 802. The third adjusting nut is located above the upper connecting block 803, and the fourth adjusting nut is located below the lower connecting block 803. The supporting steel beam 7 is made of I-beam. By adjusting the third and fourth adjusting nuts, the two traveling wheels 804 press against the lower and upper surfaces of the upper flange of the I-beam, respectively, forming a rolling contact pair.

[0034] Furthermore, the support plate 801 is provided with a disassembly guide groove 8011, wherein the adjusting screw 802 can move radially into or out of the mounting hole of the support plate 801 along the disassembly guide groove 8011. This facilitates the removal of the moving platform 8 from the supporting steel beam 7. When disassembling the moving platform 8, the third or fourth adjusting nut can be loosened directly, followed by the first or second adjusting nut. The adjusting screw 802, connecting block 803, and traveling wheel 804 can then be removed from the support plate 801. The locking screw 806 can be loosened to release the locking mechanism from the bottom connecting rod 4 of the frame unit, allowing the support plate 801 to be removed.

[0035] The assembly site is equipped with an assembly platform 1 for assembling the skeleton units.

[0036] Step 2: Assemble the skeleton units on the assembly site.

[0037] Each skeleton unit includes N intermediate skeletons 2, where 2≤N≤6; the assembly of the skeleton units includes: positioning and hoisting: using hoisting equipment 9 to hoist the first intermediate skeleton 2 to the first positioning point of the assembly platform 1, and then hoisting the second intermediate skeleton 2 to the second positioning point, with the distance between the two positioning points consistent with the design span; connecting rod connection: installing bottom connecting rods 4 and top connecting rods 3 between the first and second intermediate skeletons 2 to form a stable truss structure; iterative expansion: when N is greater than or equal to 3, repeating steps 1-2, hoisting the 3rd to Nth intermediate skeletons 2 in sequence, with each newly added skeleton connected to the previous skeleton through bottom connecting rods 4 and top connecting rods 3, finally forming an intermediate frame containing N skeletons; installation of arc-shaped keel 5: symmetrically installing arc-shaped keels 5 on both sides of the intermediate frame.

[0038] Step 3: Slide the mobile platform 8 to one end close to the assembly site, and use the hoisting equipment 9 to hoist the frame unit onto the mobile platform 8. The locking mechanism locks the bottom connecting rod 4 of the frame unit. The mobile platform 8 moves the assembled frame unit to the preset installation position.

[0039] When the mobile platform 8 moves the frame unit, it moves by means of a traction device. The traction device includes a winch 10 set on the side or ground of the electrolysis workshop and a pulley block 11 fixed on the opposite side of the first end of the roof 6 of the electrolysis workshop. The wire rope 12 on the winch 10 passes around the pulley block 11 and then turns to connect to the mobile platform 8.

[0040] Step 4: Lower the liftable support base, place the assembled skeleton unit onto the support steel beam 7, and weld and fix the support steel beam 7 to the support upright 201 of the skeleton unit.

[0041] Step 5: Remove the mobile platform 8 and reinstall it onto the supporting steel beam 7 at the end near the assembly site.

[0042] Step 6: Repeat steps 2 to 5 until the final skeleton unit is hoisted. The final skeleton unit to be installed is the one closest to the assembly site. Remove the mobile platform 8 and hoist the final skeleton unit directly into place using the hoisting equipment 9. Weld the supporting steel beam 7 to the supporting upright 201 of the last skeleton unit.

[0043] Step 7: After all the skeleton units are welded and fixed to the supporting steel beams 7, weld transverse stiffening ribs between the two supporting steel beams 7.

[0044] The electrolysis workshop ventilator frame installation method of this application achieves significant beneficial effects through the following structural design:

[0045] This method divides the ventilator frame into several units through modular assembly, which are then assembled on-site, reducing the difficulty of high-altitude operations. The frame units are lowered using a liftable support base. The coordinated design of the mobile platform 8, winch 10, and pulley system 11 ensures the smooth movement of the mobile platform 8 on the narrow roof 6, reducing the physical exertion of manual pushing and improving transportation efficiency. By reducing the use of large-tonnage cranes, construction costs are significantly reduced. This method, through modular design and synergistic optimization of the mobile platform 8 and traction system, achieves efficient, low-cost, and safe installation of the ventilator frame on the narrow electrolysis workshop roof 6, demonstrating significant practicality and potential for wider application.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A method for installing a ventilator frame in an electrolysis workshop, characterized in that, Includes the following steps: Step 1: Divide the ventilator frame into several frame units; A leveling area was prepared on the ground outside the first end of the electrolysis workshop for the assembly process. Two supporting steel beams (7) are arranged at intervals on the roof (6) of the electrolysis workshop. The supporting steel beams (7) are arranged along the length of the roof (6), and the spacing between the two supporting steel beams (7) matches the width of the skeleton unit. A mobile platform (8) is provided on the supporting steel beam (7). The mobile platform (8) includes a liftable support seat, a locking mechanism is provided on the liftable support seat, and a sliding mechanism is provided at the bottom of the liftable support seat. The sliding mechanism can slide along the supporting steel beam (7). Step 2: Assemble the frame units at the assembly site; Step 3: Slide the mobile platform (8) to one end close to the assembly site, use the hoisting equipment (9) to hoist the skeleton unit onto the mobile platform (8), and lock the bottom connecting rod (4) of the skeleton unit with the locking mechanism; the mobile platform (8) drives the assembled skeleton unit to the preset installation position; In step three, when the mobile platform (8) moves the skeleton unit, it is moved by a traction device. The traction device includes a winch (10) set on the side or ground of the electrolysis workshop and a pulley block (11) fixed on the roof (6) of the electrolysis workshop. The wire rope (12) on the winch (10) goes around the pulley block (11) and turns to connect with the mobile platform (8). Step 4: Lower the liftable support base, place the assembled skeleton unit on the support steel beam (7), and weld and fix the support steel beam (7) to the support upright (201) of the skeleton unit; Step 5: Remove the mobile platform (8) and reinstall it onto the supporting steel beam (7) near the assembly site. Step 6: Repeat steps 2 to 5 until the final skeleton unit is hoisted. The final skeleton unit to be installed is the unit closest to the assembly site. Remove the mobile platform (8) and hoist the final skeleton unit directly into place using the hoisting equipment (9). Weld the supporting steel beam (7) to the supporting pole (201) of the last skeleton unit. The liftable support includes a support plate (801) and two adjusting screws (802). The adjusting screws (802) pass through the support plate (801) and are locked by a first adjusting nut and a second adjusting nut. The first adjusting nut is located on the upper side of the support plate (801), and the second adjusting nut is located on the lower side of the support plate (801). The locking mechanism includes two stops (805) spaced apart on the support plate (801), and a locking screw (806) is threaded onto the stops (805). An abutment (807) is provided at one end of the locking screw (806) facing each other. The sliding mechanism includes two connecting blocks (803) spaced apart vertically. The connecting blocks (803) are provided with adjustment holes, and the adjustment screw (802) passes through the adjustment holes. The connecting blocks (803) are also rotatably connected with a traveling wheel (804). The adjusting screw (802) is also threaded with a third adjusting nut and a fourth adjusting nut. The third adjusting nut is located above the upper connecting block (803), and the fourth adjusting nut is located below the lower connecting block (803). The supporting steel beam (7) is made of I-beam. By adjusting the third and fourth adjusting nuts, the two traveling wheels (804) press against the lower and upper surfaces of the upper flange of the I-beam respectively to form a rolling contact pair.

2. The method for installing the ventilator frame in an electrolysis workshop according to claim 1, characterized in that, It also includes step seven: after all the skeleton units are welded and fixed to the supporting steel beams (7), transverse stiffening ribs are welded between the two supporting steel beams (7).

3. The method for installing the ventilator frame in an electrolysis workshop according to claim 1, characterized in that: The support plate (801) is provided with a disassembly guide groove (8011), wherein the adjusting screw (802) can be moved radially into or out of the mounting hole of the support plate (801) along the disassembly guide groove (8011).

4. The method for installing the ventilator frame in an electrolysis workshop according to claim 1, characterized in that: The assembly site is equipped with an assembly platform (1) for assembling the skeleton units.

5. The method for installing the ventilator frame in an electrolysis workshop according to claim 4, characterized in that: Each skeleton unit includes N intermediate skeletons (2), where 2≤N≤6; in step two, the assembly of the skeleton units includes: Positioning and hoisting: Use hoisting equipment (9) to hoist the first intermediate frame (2) to the first positioning point of the assembly platform (1), and then hoist the second intermediate frame (2) to the second positioning point. The distance between the two positioning points is consistent with the design span. Linkage: A bottom link (4) and a top link (3) are installed between the intermediate frame (2) of the first and second frames to form a stable truss structure; Iterative expansion: When N is greater than or equal to 3, repeat steps 1-2 and hoist the 3rd to Nth intermediate frames (2) in sequence. Each newly added frame is connected to the previous frame through the bottom connecting rod (4) and the top connecting rod (3) to form an intermediate frame containing N frames. Installation of curved keel (5): Curved keel (5) is installed symmetrically on both sides of the middle frame.

Images