A lifting method for an arc-shaped silo integral lifting device

Abstract

The present invention relates to a method for lifting an integral lifting device for an arc-shaped silo. The lifting device includes a base, a supporting platform, an overhanging beam, a lifting assembly, a pulling assembly, and a monitoring assembly. The lifting method includes: step S1, installing a roof ring, columns, and multiple roof panels on the top surface layer; step S2, installing a lifting device below the roof panel reserved holes on the top surface layer; step S3, lifting the roof panel using the lifting device, and installing a first silo side wall below the roof panel; step S4, removing the lifting device, reinstalling the lifting device on the first silo side wall, lifting the first silo side wall, and installing a second silo side wall below the first silo side wall. The purpose of the present invention is to overcome existing defects and provide a lifting method for an integral lifting device for an arc-shaped silo that is easy to disassemble and reusable.

Description

Technical Field

[0001] The invention relates to a lifting method of an arc-shaped silo integral lifting device. Background Art

[0002] Silos are warehouses for storing bulk materials. They are categorized into agricultural and industrial silos. Agricultural silos are used to store granular and powdered materials such as grain and feed; industrial silos are used to store bulk materials such as coke, cement, salt, and sugar. Mechanized silos generally cost about one-third more than mechanized room-type silos, but they shorten the material loading and unloading process, reduce operating and maintenance costs, and eliminate laborious bagging operations, facilitating mechanized and automated operations. Therefore, they have become one of the most common types of grain storage.

[0003] During the installation of existing arc-shaped silos, the roof is assembled first, and then the silo side walls are installed on the side of the roof by lifting or hoisting the roof. There is no suitable device for lifting the roof. The existing roof lifting device cannot be disassembled after the roof is lifted, resulting in waste of lifting device materials. The method of installing by hoisting the roof requires large lifting equipment due to the large size of the arc-shaped silo roof and the high height required. The installation process is long and the installation cost is high.

[0004] Therefore, in order to solve the above problems, a lifting method of an arc-shaped silo integral lifting device is proposed. Summary of the Invention

[0005] The purpose of the present invention is to overcome the existing defects and provide a lifting method for an arc-shaped silo integral lifting device, which is easy to disassemble and can be reused.

[0006] The technical solution to achieve the above object is: a lifting method of an arc-shaped silo integral lifting device, the lifting device comprising a base, a jacking platform, an outwardly extending beam, a jacking assembly, a pulling assembly and a monitoring assembly;

[0007] The base is connected to the top surface of the silo, the upper end of the base is connected to the jacking assembly, the upper end of the jacking assembly is connected to the jacking platform, the upper end surface of the jacking platform is connected to the outward-extending beam, the outward-extending beam is connected to the lifting assembly, and the curved silo roof panel is lifted by the lifting assembly; the monitoring assembly is arranged on the base and the outward-extending beam;

[0008] The jacking assembly includes a hydraulic jacking device, the lower end of the hydraulic jacking device is connected to the base and the upper end is connected to the jacking platform;

[0009] The lifting assembly includes an electric hoist, a lifting chain and a lifting hook; the electric hoist is connected to the outwardly extending beam, the electric hoist is connected to the lifting chain, the other end of the lifting chain is connected to the lifting hook, and the lifting hook is connected to the silo roof;

[0010] The monitoring assembly includes a first signal monitoring device, a second signal monitoring device, a first signal source and a second signal source; the first signal monitoring device is connected to the lower end surface of the overhanging beam; the second signal monitoring device is connected to the upper end surface of the base; the first signal source and the second signal source are respectively connected to the upper and lower ends of the roof panel reserved hole opened on the silo roof panel.

[0011] Lifting methods include:

[0012] Step S1, installing a roof ring, columns and a plurality of roof panels on the top surface layer;

[0013] Step S2: installing a lifting device on the top surface layer below the roof panel reserved hole of the roof panel;

[0014] Step S3, lifting the roof panel by a lifting device, and installing the first silo side wall below the roof panel;

[0015] Step S4: remove the lifting device, reinstall the lifting device on the first silo side wall, lift the first silo side wall, and install the second silo side wall below the first silo side wall.

[0016] The step S1 of installing the roof ring, columns and multiple roof panels on the top surface layer includes:

[0017] Step S11: Install the columns at the column mounting holes reserved on the top surface layer. After installation, use a car crane to lift the roof ring to the top of the column and simply fix the roof ring to the column.

[0018] In step S12, sixteen roof panels are sequentially hoisted onto the top surface layer using a truck crane, wherein one end of the roof panel is placed on the roof ring and welded to the roof ring for fixation, and the other end is placed on the top surface layer in a free state; the multiple roof panels are closely arranged in a circle.

[0019] The step S2 of installing a lifting device on the top surface layer below the roof panel reserved hole of the roof panel includes:

[0020] Step S21: Using anchor bolts to pass through the base anchoring sheet on the top surface layer below the reserved hole of the roof panel, fix the base to the top surface layer, install a hydraulic jacking device on the base, install a jacking platform on the hydraulic jacking device, install an overhanging beam on the jacking platform, install an electric hoist on the overhanging beam, connect a lifting chain to the electric hoist, connect a lifting hook to the other end of the lifting chain, and connect a supporting longitudinal beam between the lower end surface of the overhanging beam and the jacking platform;

[0021] Step S22, install the first signal monitoring device on the lower end surface of the extended beam; install the second signal monitoring device on the upper end surface of the base; install the first signal source and the second signal source on the upper and lower ends of the roof panel reserved holes opened on the silo roof panel respectively; so that the first signal monitoring device and the second signal monitoring device can transmit signals in real time and be received by the first signal source and the second signal source.

[0022] The step S3 of lifting the roof panel by a lifting device and installing the first silo side wall below the roof panel includes:

[0023] Step S31: First, the jacking platform is raised to the designed height by controlling the hydraulic jacking device of the lifting device. Then, the lifting hook is hung on the first pull ring of the roof panel, and the first signal monitoring device, the second signal monitoring device, the first signal source, and the second signal source are activated to perform initial calibration. After the initial calibration is completed, the electric hoist is activated to lift the entire roof panel. During the lifting process, the horizontal and vertical displacements during the lifting process are monitored in real time using computer analysis software, and adjustments are made in a timely manner based on the monitoring results.

[0024] Step S32: After the roof panel is lifted to the designed height, the electric hoist is turned off and the lifting result is finally checked using computer analysis software. If there is no difference in the values, the first silo side wall is installed at the bottom of the roof panel, and the lifting device for lifting the roof panel is removed to complete the overall lifting of the curved roof panel. If there is a difference in the values, local adjustments are made by turning on the electric hoist corresponding to the roof panel with the larger deviation. After the adjustment is completed, the first silo side wall is installed at the bottom of the roof panel, and the first silo side wall and the roof panel are connected by welding.

[0025] The step S4, removing the lifting device, reinstalling the lifting device on the first silo side wall, lifting the first silo side wall, and installing the second silo side wall below the first silo side wall, comprises:

[0026] In step S41, a lifting device is installed on the side wall of the first silo on the top surface layer. The installation steps are the same as those in step S21. A first signal monitoring device is installed on the lower end surface of the extended crossbeam; a second signal monitoring device is installed on the upper end surface of the base; and a first signal source is installed on the second pull ring on the inner side of the side wall of the first silo. This allows the first signal monitoring device and the second signal monitoring device to transmit signals in real time and be received by the first signal source.

[0027] In step S42, the jacking platform is raised to the designed height by controlling the hydraulic jacking device of the lifting device, and then the lifting hook is hung on the second pull ring of the first silo side wall, and the first signal monitoring device, the second signal monitoring device and the first signal source are turned on for initial calibration. After the initial calibration is completed, the electric hoist is turned on to lift the entire side wall of the first silo. During the lifting process, the horizontal and vertical displacements of the lifting process are monitored in real time through computer analysis software, and adjustments are made in time according to the monitoring results; after the adjustment is completed, the second silo side wall is connected below the first silo side wall.

[0028] Preferably, after the second silo side wall is installed, the lifting device lifts the second silo side wall, and installs the third silo side wall below the second silo side wall, and the lifting is repeated until all silo side walls are installed.

[0029] Preferably, the plurality of roof panels are connected by welding.

[0030] Preferably, the lifting device is disassembled and removed after all lifting is completed.

[0031] The beneficial effects of the present invention are as follows: the lifting method of the overall lifting device of the arc-shaped silo is provided by providing a base, a jacking platform, an overhanging beam, a jacking assembly, a pulling assembly and a monitoring assembly; the base is connected to the top surface of the silo, the upper end of the base is connected to the jacking assembly, the upper end of the jacking assembly is connected to the jacking platform, the upper end surface of the jacking platform is connected to the overhanging beam, the upper end of the overhanging beam is connected to the pulling assembly, and the arc-shaped silo roof panel is pulled up by the pulling assembly; the monitoring assembly is provided on the base and the overhanging beam; the upper end surface of the jacking platform is connected to the supporting longitudinal beam, and the upper end of the supporting longitudinal beam is connected to the overhanging beam; it can be adjusted according to the jacking height, is easy to disassemble, can be reused, and saves costs. The monitoring assembly can realize dynamic monitoring of the horizontal and vertical displacement of the arc-shaped roof during the jacking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a side view of the installation of the roof panel of the present invention;

[0033] Figure 2 is a top view of the installation of the roof panel of the present invention;

[0034] Figure 3 This is a schematic diagram of the installation of the first silo side wall of the present invention;

[0035] Figure 4 It is a connection detail diagram of the column of the present invention;

[0036] Figure 5 is a top view of the roof ring of the present invention;

[0037] Figure 6 This is a side view of the arc-shaped silo integral lifting device of the present invention;

[0038] Figure 7 This is a top view of the arc-shaped silo integral lifting device of the present invention;

[0039] Figure 8 is a schematic diagram of the angle of the roof panel of the present invention when it is lifted;

[0040] Figure 9 This is a detailed view of the position of the first pull ring of the present invention;

[0041] Figure 10 It is a schematic diagram of the lifting of the side wall and roof panel of the first silo of the present invention;

[0042] Figure 11 This is a schematic diagram of the installation of the second silo side wall of the present invention;

[0043] Figure 12 This is a schematic diagram of the angle when the side wall of the first silo of the present invention is lifted;

[0044] Figure 13 This is a schematic diagram of the angle of the second silo side wall installation of the present invention;

[0045] Figure 14 This is a detailed view of the position of the second pull ring of the present invention;

[0046] Figure 15 is a schematic diagram of the lifting method of the present invention;

[0047] Figure 16 is a detailed diagram of step S1 of the lifting method of the present invention;

[0048] Figure 17 is a detailed diagram of step S2 of the lifting method of the present invention;

[0049] Figure 18 is a detailed diagram of step S3 of the lifting method of the present invention;

[0050] Figure 19 Detailed view of step S4 of the lifting method of the present invention.

[0051] In the figure: 1. Base; 2. Support platform; 3. Extended beam; 4. Hydraulic jacking device; 5. Electric hoist; 6. Lifting chain; 7. Lifting hook; 8. Support longitudinal beam; 9. Base anchor plate; 10. Anchor bolt; 11. First signal monitoring device; 12. Second signal monitoring device; 13. First signal source; 14. Second signal source; 15. Top surface layer; 16. Roof panel; 17. Reserved hole for roof panel; 18. Roof ring; 19. Column; 20. First pull ring; 21. Second pull ring. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0053] The present invention will be further described below with reference to the accompanying drawings.

[0054] like Figure 1-14 As shown, a lifting method of an integral lifting device for an arc-shaped silo is provided, wherein the lifting device includes a base 1, a jacking platform 2, an overhanging beam 3, a jacking assembly, a pulling assembly and a monitoring assembly; the base 1 is connected to the top surface layer 15 of the silo, the upper end of the base 1 is connected to the jacking assembly, the upper end of the jacking assembly is connected to the jacking platform 2, the upper end surface of the jacking platform 2 is connected to the overhanging beam 3, the overhanging beam 3 is connected to the pulling assembly, and the arc-shaped silo roof panel 16 is pulled up by the lifting assembly; the monitoring assembly is arranged on the base 1 and the overhanging beam 3; the upper end surface of the jacking platform 2 is connected to the supporting longitudinal beam 8, and the upper end of the supporting longitudinal beam 8 is connected to the overhanging beam 3.

[0055] like Figure 6 As shown, the jacking assembly includes a hydraulic jacking device 4, the lower end of the hydraulic jacking device 4 is connected to the base 1 and the upper end is connected to the jacking platform 2;

[0056] like Figure 6 As shown, the lifting assembly includes an electric hoist 5, a lifting chain 6 and a lifting hook 7; the electric hoist 5 is connected to the outward-extending beam 3, the electric hoist 5 is connected to the lifting chain 6, the other end of the lifting chain 6 is connected to the lifting hook 7, and the lifting hook 7 is connected to the silo roof;

[0057] Specifically, the monitoring assembly includes a first signal monitoring device 11, a second signal monitoring device 12, a first signal source 13, and a second signal source 14; the first signal monitoring device 11 is connected to the lower end surface of the extended beam 3; the second signal monitoring device 12 is connected to the upper end surface of the base 1; the first signal source 13 and the second signal source 14 are respectively connected to the upper and lower ends of the roof panel reserved hole 17 opened in the silo roof panel 16;

[0058] like Figure 7 As shown, the base 1 is connected to the silo top surface 15 via four anchoring assemblies, one at each corner of the base 1. The anchoring assemblies include two base anchoring plates 9, which are attached to either side of the base 1. Anchor bolts 10 are connected to the base anchoring plates 9, which are then connected to the silo top surface 15.

[0059] Specifically, columns 19 are installed in the reserved column mounting holes on the top surface layer 15. After installation, the roof ring 18 is lifted to the top of the column 19 using a truck crane and the roof ring 18 and the column 19 are simply fixed. The sixteen roof panels 16 are sequentially lifted onto the top surface layer 15 using the truck crane. One end of the roof panel 16 is placed on the roof ring 18 and welded to the roof ring 18 for fixation, while the other end is placed on the top surface layer 15 and is in a free state. The multiple roof panels 16 are closely arranged in a circle. The multiple roof panels 16 are connected by welding.

[0060] Specifically, on the top surface layer 15 below the roof panel reserved hole 17 of the roof panel 16, an anchor bolt 10 is used to pass through the base anchor plate 9 to fix the base 1 on the top surface layer 15, a hydraulic jacking device 4 is installed on the base 1, a jacking platform 2 is installed on the hydraulic jacking device 4, an outward beam 3 is installed on the jacking platform 2, an electric hoist 5 is installed on the outward beam 3, a lifting chain 6 is connected to the electric hoist 5, a lifting hook 7 is connected to the other end of the lifting chain 6, and a supporting longitudinal beam 8 is connected between the lower end surface of the outward beam 3 and the jacking platform 2; a first signal monitoring device 11 is installed on the lower end surface of the outward beam 3; a second signal monitoring device 12 is installed on the upper end surface of the base 1; a first signal source 13 and a second signal source 14 are respectively installed at the upper and lower ends of the roof panel reserved hole 17 opened in the silo roof panel 16; so that the first signal monitoring device 11 and the second signal monitoring device 12 can transmit signals in real time and be received by the first signal source 13 and the second signal source 14;

[0061] Specifically, first, the jacking platform 2 is lifted to the designed height by controlling the hydraulic jacking device 4 of the lifting device, and then the lifting hook 7 is hung on the first pull ring 20 of the roof panel 16, and the first signal monitoring device 11, the second signal monitoring device 12, the first signal source 13 and the second signal source 14 are turned on for initial calibration. After the initial calibration is completed, the electric hoist 5 is turned on to lift the roof panel 16 as a whole. During the lifting process, the horizontal and vertical displacements during the lifting process are monitored in real time by computer analysis software, and adjustments are made in time according to the monitoring results; after the roof panel 16 is lifted to the designed height, the electric hoist 5 is turned off and the lifting result is finally checked by computer analysis software. If there is no difference in the value, the first silo side wall is installed at the bottom of the roof panel 16, and the lifting device for lifting the roof panel 16 is removed to complete the overall lifting of the curved roof panel; if there is a difference in the value, the electric hoist 5 corresponding to the roof panel 16 with the larger deviation is turned on for local adjustment. After the adjustment is completed, the first silo side wall is installed at the bottom of the roof panel 16, and the first silo side wall and the roof panel 16 are connected by welding.

[0062] Specifically, the angle α between the first signal source 13 and the first signal monitoring device 11 can be obtained through the first signal monitoring device 11, and the distance L1 between the two can be obtained through the signal receiving time. Then, the distance H2 between the lower side of the roof panel reserved hole 17 and the first signal monitoring device 11 is H1sinα, and the horizontal distance ΔL1 between the first signal source 13 and the first signal monitoring device 11 is L1cosα.

[0063] Specifically, the second signal monitoring device 12 can obtain the angle γ between the second signal source 14 and the second signal monitoring device 12 by the signal reception time, and the distance L2 between the two can be obtained. Then, the distance H4 between the lower side of the roof panel reserved hole 17 and the second signal monitoring device 12 is equal to L2sinγ. The distance ΔH1 from the second signal monitoring device 12 to the top surface layer is known to be a constant value. The distance H from the first signal monitoring device 11 to the top surface layer is also known to be a constant value. Then, the vertical distance H3 between the first signal source 13 and the second signal source 14 is equal to H-H2-H4-ΔH1. The distance l from the first signal source 13 to the lower end of the roof panel 16 is known, and the angle β can be obtained as arccos(H3 / l). According to the principle of equality of parallel angles and similarity of triangles, the larger triangle angle is still β. Since the length of the roof panel 16 is known to be L, the horizontal distance ΔL from the bottom end to the top end of the roof panel 16 can be calculated by cosβ=(ΔL / L). The distance H between the roof ring 18 and the roof panel 16 max is a constant value, then the lifting height ΔH1=H max-Lsinβ, establish a three-dimensional coordinate system for each curved roof panel, then the changes in the horizontal and vertical coordinates of the bottom end of the curved roof panel can be obtained in real time. By comparing the coordinates of the bottom end of each roof panel 16, the control of horizontal and vertical displacement during the overall lifting process is ensured. When the coordinate value difference is large, an alarm is automatically issued and the area with large coordinate difference is displayed, and individual lifting adjustments are made to the area with large difference.

[0064] Specifically, a lifting device is installed on the top surface layer 15 of the first silo side wall, and the installation steps are the same as above. The first signal monitoring device 11 is installed on the lower end surface of the extended beam 3; the second signal monitoring device 12 is installed on the upper end surface of the base 1; the first signal source 13 is installed at the second pull ring 21 on the inner side of the first silo side wall; so that the first signal monitoring device 11 and the second signal monitoring device 12 can transmit signals in real time and be received by the first signal source 13; the hydraulic jacking device 4 of the lifting device is controlled to lift the jacking platform 2 to the designed height, and then the lifting hook 7 is hung on the second pull ring 21 of the first silo side wall, and the first signal monitoring device 11, the second signal monitoring device 12 and the first signal source 13 are turned on for initial calibration. After the initial calibration is completed, the electric hoist 5 is turned on to lift the entire side wall of the first silo. During the lifting process, the horizontal and vertical displacements of the lifting process are monitored in real time by computer analysis software, and adjustments are made in time according to the monitoring results; after the adjustment is completed, the second silo side wall is connected below the first silo side wall.

[0065] Specifically, after the second silo sidewall is installed, the lifting device lifts the second silo sidewall, and the third silo sidewall is installed below the second silo sidewall. This process is repeated until all silo sidewalls are installed. After the lifting is completed, the lifting device is disassembled and removed.

[0066] Specifically, the initial horizontal displacement between the first signal monitoring device 11 and the first signal source 13 measured during preliminary debugging before lifting is known as n0, and the initial horizontal displacement between the second signal monitoring device 12 and the first signal source 13 is known as m0. During the overall lifting process, the silo as a whole does not undergo horizontal displacement, but only vertical displacement. n1 = n0

[0067] Specifically, the distance between the first signal monitoring device 11 and the first signal source 13 is L3, and the angle α between the two is known. Then, the horizontal distance n1=L3cosα between the first signal monitoring device 11 and the first signal source 13 during the lifting process, and the distance between the displaced second signal monitoring device 12 and the first signal source 13 is L4, and the angle β between the two is known. Then, the horizontal distance m1=L4cosβ between the displaced second signal monitoring device 12 and the first signal source 13 during the lifting process. If n1=n0, m1=m0, it means that the overall level is during the lifting process. If n1≠n0 or m1≠m0 or n1≠n0, m1≠m0, the silo as a whole has undergone horizontal displacement. Adjustments are made according to the position of the deviation point, and local adjustments are made by opening the electric hoist 5 corresponding to the first silo side wall with the larger deviation, and then rechecking is performed after the adjustment is completed.

[0068] Specifically, the vertical displacement monitoring of the first silo sidewall during the lifting process (taking the lifting of the first silo sidewall as an example) is as follows: the vertical distance between the first signal monitoring device 11 and the first signal source 13 during the lifting process is H5 = L3sinα, and the distance between the second signal monitoring device 12 and the first signal source 13 during the lifting process is H6 = L4sinβ. The vertical displacement between the first signal monitoring device 11 and the second signal monitoring device 12 is known as H7, the vertical displacement between the first signal source 13 and the bottom of the first silo sidewall is known as H8, and the vertical displacement between the second signal monitoring device 12 and the top surface is ΔH1. Therefore, the vertical displacement between the bottom of the first silo section and the top surface is l = H7 - H8 - L3sinα + ΔH1 = L4sinβ - H8 + ΔH1. A three-dimensional coordinate system of the silo side wall is established based on the coordinates of each lifting point at the bottom end of the first silo side wall. The changes in the horizontal and vertical coordinates of the bottom end of the first silo side wall can be obtained in real time. By comparing the coordinates of the bottom end of each first silo side wall, the control of horizontal and vertical displacement during the overall lifting process is ensured. When the difference in coordinate values ​​is large, an alarm is automatically issued and the areas with large coordinate differences are displayed. Individual lifting adjustments are made to the areas with large differences.

[0069] like Figure 15-19 As shown, the lifting methods include:

[0070] Step S1, installing a roof ring 18, columns 19 and a plurality of roof panels 16 on the top surface layer 15;

[0071] Step S1, installing the roof ring 18, columns 19 and a plurality of roof panels 16 on the top surface layer 15, includes:

[0072] Step S11: Install the columns 19 at the column mounting holes reserved on the top surface layer 15. After installation, the roof ring 18 is lifted to the upper part of the column 19 by a car crane, and the roof ring 18 and the column 19 are simply fixed;

[0073] In step S12, sixteen roof panels 16 are sequentially hoisted onto the top surface layer 15 using a truck crane. One end of each roof panel 16 is placed on the roof ring 18 and welded thereto for fixation, while the other end is placed on the top surface layer 15 and is free. The multiple roof panels 16 are closely arranged in a circular shape and connected by welding.

[0074] Step S2: Install a lifting device on the top surface layer 15 below the roof panel reserved hole 17 of the roof panel 16;

[0075] Step S2, installing a lifting device on the top surface layer 15 below the roof panel reserved hole 17 of the roof panel 16 includes:

[0076] Step S21: Using anchor bolts 10 to pass through the base anchoring plate 9 on the top surface layer 15 below the roof panel reserved hole 17 of the roof panel 16, the base 1 is fixed to the top surface layer 15, a hydraulic jacking device 4 is installed on the base 1, a jacking platform 2 is installed on the hydraulic jacking device 4, an overhanging beam 3 is installed on the jacking platform 2, an electric hoist 5 is installed on the overhanging beam 3, a lifting chain 6 is connected to the electric hoist 5, a lifting hook 7 is connected to the other end of the lifting chain 6, and a supporting longitudinal beam 8 is connected between the lower end surface of the overhanging beam 3 and the jacking platform 2;

[0077] Step S22, install the first signal monitoring device 11 on the lower end surface of the overhanging beam 3; install the second signal monitoring device 12 on the upper end surface of the base 1; install the first signal source 13 and the second signal source 14 on the upper and lower ends of the roof panel reserved hole 17 opened on the silo roof panel 16 respectively; so that the first signal monitoring device 11 and the second signal monitoring device 12 can transmit signals in real time and be received by the first signal source 13 and the second signal source 14.

[0078] Step S3, lifting the roof panel 16 by a lifting device, and installing the first silo side wall below the roof panel 16;

[0079] Step S3, lifting the roof panel 16 by a lifting device and installing the first silo side wall below the roof panel 16 includes:

[0080] In step S31, the jacking platform 2 is first raised to the designed height by controlling the hydraulic jacking device 4 of the lifting device. Then, the lifting hook 7 is hung on the first pull ring 20 of the roof panel 16. The first signal monitoring device 11, the second signal monitoring device 12, the first signal source 13, and the second signal source 14 are turned on to perform initial calibration. After the initial calibration is completed, the electric hoist 5 is turned on to lift the entire roof panel 16. During the lifting process, the horizontal and vertical displacements during the lifting process are monitored in real time using computer analysis software, and adjustments are made in a timely manner based on the monitoring results.

[0081] Step S32: After the roof panel 16 is lifted to the designed height, the electric hoist 5 is turned off and the lifting result is finally checked by computer analysis software. If there is no difference in the values, the first silo side wall is installed at the bottom of the roof panel 16, and the lifting device for lifting the roof panel 16 is removed to complete the overall lifting of the curved roof panel; if there is a difference in the values, a local adjustment is made by turning on the electric hoist 5 corresponding to the roof panel 16 with a larger deviation. After the adjustment is completed, the first silo side wall is installed at the bottom of the roof panel 16, and the first silo side wall and the roof panel 16 are connected by welding.

[0082] First, the angle α between the first signal source 13 and the first signal monitoring device 11 can be obtained through the first signal monitoring device 11, and the distance L1 between the two can be obtained through the signal reception time. Then, the distance H2 between the lower side of the roof panel reserved hole 17 and the first signal monitoring device 11 is H1sinα, and the horizontal distance ΔL1 between the first signal source 13 and the first signal monitoring device 11 is L1cosα.

[0083] The second signal monitoring device 12 can measure the angle γ between the second signal source 14 and the second signal monitoring device 12. The distance L2 between the two can be obtained by the signal reception time. Therefore, the distance H4 between the lower side of the roof panel reserved hole 17 and the second signal monitoring device 12 is equal to L2sinγ. The distance ΔH1 from the second signal monitoring device 12 to the top surface layer is known to be a constant. The distance H from the first signal monitoring device 11 to the top surface layer is also known to be a constant. Therefore, the vertical distance H3 between the first signal source 13 and the second signal source 14 is equal to H-H2-H4-ΔH1. The distance l from the first signal source 13 to the lower end of the roof panel 16 is known, so the angle β can be obtained as arccos(H3 / l). According to the principle of equality of parallel angles and similar triangles, the larger triangle angle is still β. Since the length of the roof panel 16 is known to be L, the horizontal distance ΔL from the bottom end to the top end of the roof panel 16 can be calculated by cosβ=(ΔL / L). The distance H between the roof ring 18 and the roof panel 16 max is a constant value, then the lifting height ΔH1=H max-Lsinβ, establish a three-dimensional coordinate system for each curved roof panel, then the changes in the horizontal and vertical coordinates of the bottom end of the curved roof panel can be obtained in real time. By comparing the coordinates of the bottom end of each roof panel 16, the control of horizontal and vertical displacement during the overall lifting process is ensured. When the coordinate value difference is large, an alarm is automatically issued and the area with large coordinate difference is displayed, and individual lifting adjustments are made to the area with large difference.

[0084] Step S4: remove the lifting device, reinstall the lifting device on the first silo side wall, lift the first silo side wall, and install the second silo side wall below the first silo side wall.

[0085] Step S4, removing the lifting device, reinstalling the lifting device on the first silo side wall, lifting the first silo side wall, and installing the second silo side wall below the first silo side wall includes:

[0086] In step S41, a lifting device is installed on the top surface layer 15 and the side wall of the first silo. The installation steps are the same as those in step S21. The first signal monitoring device 11 is installed on the lower end surface of the extended crossbeam 3; the second signal monitoring device 12 is installed on the upper end surface of the base 1; and the first signal source 13 is installed on the second pull ring 21 on the inner side of the first silo side wall. This allows the first signal monitoring device 11 and the second signal monitoring device 12 to transmit signals in real time and receive them from the first signal source 13.

[0087] In step S42, the jacking platform 2 is lifted to the designed height by controlling the hydraulic jacking device 4 of the lifting device, and then the lifting hook 7 is hung on the second pull ring 21 of the first silo side wall, and the first signal monitoring device 11, the second signal monitoring device 12 and the first signal source 13 are turned on for initial calibration. After the initial calibration is completed, the electric hoist 5 is turned on to lift the entire side wall of the first silo. During the lifting process, the horizontal and vertical displacements of the lifting process are monitored in real time through computer analysis software, and adjustments are made in time according to the monitoring results; after the adjustment is completed, the second silo side wall is connected below the first silo side wall.

[0088] After the second silo sidewall is installed, the lifting device lifts the second silo sidewall and installs the third silo sidewall under the second silo sidewall. Repeat this process until all silo sidewalls are installed. After all silo sidewalls are installed, the lifting device is disassembled and removed.

[0089] The initial horizontal displacement between the first signal monitoring device 11 and the first signal source 13 measured during preliminary commissioning before lifting is known as n0, and the initial horizontal displacement between the second signal monitoring device 12 and the first signal source 13 is known as m0. During the overall lifting process, the silo as a whole does not undergo horizontal displacement, but only vertical displacement. n1 = n0

[0090] The distance between the first signal monitoring device 11 and the first signal source 13 is L3, and the angle α between the two is known. Therefore, the horizontal distance n1 between the first signal monitoring device 11 and the first signal source 13 during the lifting process is L3cosα, and the distance between the displaced second signal monitoring device 12 and the first signal source 13 is L4. The angle β between the two is known. Therefore, the horizontal distance m1 between the displaced second signal monitoring device 12 and the first signal source 13 during the lifting process is L4cosβ. If n1=n0, m1=m0, it means that the overall level is during the lifting process. If n1≠n0 or m1≠m0 or n1≠n0, m1≠m0, the silo as a whole has undergone horizontal displacement. Adjustments are made according to the position of the deviation point, and local adjustments are made by opening the electric hoist 5 corresponding to the first silo side wall with the larger deviation, and then rechecking is performed after the adjustment is completed.

[0091] Monitoring the vertical displacement of the first silo sidewall during installation during the lifting process (taking the lifting of the first silo sidewall as an example): The vertical distance between the first signal monitoring device 11 and the first signal source 13 during the lifting process is H5 = L3sinα, and the distance between the second signal monitoring device 12 and the first signal source 13 during the lifting process is H6 = L4sinβ. The vertical displacement between the first signal monitoring device 11 and the second signal monitoring device 12 is known as H7, the vertical displacement between the first signal source 13 and the bottom of the first silo sidewall is known as H8, and the vertical displacement between the second signal monitoring device 12 and the top surface is ΔH1. Therefore, the vertical displacement between the bottom of the first silo section and the top surface is l = H7 - H8 - L3sinα + ΔH1 = L4sinβ - H8 + ΔH1. A three-dimensional coordinate system of the silo side wall is established based on the coordinates of each lifting point at the bottom end of the first silo side wall. The changes in the horizontal and vertical coordinates of the bottom end of the first silo side wall can be obtained in real time. By comparing the coordinates of the bottom end of each first silo side wall, the control of horizontal and vertical displacement during the overall lifting process is ensured. When the difference in coordinate values ​​is large, an alarm is automatically issued and the areas with large coordinate differences are displayed. Individual lifting adjustments are made to the areas with large differences.

[0092] The lifting method of the present arc-shaped silo integral lifting device comprises a base 1, a jacking platform 2, an overhanging beam 3, a lifting assembly, a pulling assembly, and a monitoring assembly. The base 1 is connected to the silo top surface 15, the upper end of the base 1 is connected to the lifting assembly, the upper end of the lifting assembly is connected to the jacking platform 2, the upper end surface of the jacking platform 2 is connected to the overhanging beam 3, the overhanging beam 3 is connected to the lifting assembly, and the arc-shaped silo roof panel 16 is pulled up by the lifting assembly. The monitoring assembly is arranged on the base 1 and the overhanging beam 3. The upper end surface of the jacking platform 2 is connected to the supporting longitudinal beam 8, the upper end of the supporting longitudinal beam 8 is connected to the overhanging beam 3. The device can be adjusted according to the lifting height, is easy to disassemble, and can be reused, saving costs. The monitoring assembly can realize dynamic monitoring of the horizontal and vertical displacement of the arc-shaped roof during the lifting process.

[0093] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for lifting an arc-shaped silo integral lifting device, the lifting device comprising a base (1), a supporting platform (2), an outwardly extending beam (3), a lifting assembly, a pulling assembly, and a monitoring assembly; The base (1) is connected to the top surface layer (15) of the silo, the upper end of the base (1) is connected to the jacking assembly, the upper end of the jacking assembly is connected to the jacking platform (2), the upper end surface of the jacking platform (2) is connected to the outward-extending beam (3), the outward-extending beam (3) is connected to the lifting assembly, and the curved silo roof panel (16) is pulled up by the lifting assembly; the monitoring assembly is arranged on the base (1) and the outward-extending beam (3); The jacking assembly comprises a hydraulic jacking device (4), the lower end of the hydraulic jacking device (4) being connected to the base (1) and the upper end being connected to the jacking platform (2); The lifting assembly comprises an electric hoist (5), a lifting chain (6) and a lifting hook (7); the electric hoist (5) is connected to the outwardly extending crossbeam (3), the electric hoist (5) is connected to the lifting chain (6), the other end of the lifting chain (6) is connected to the lifting hook (7), and the lifting hook (7) is connected to the silo roof; The monitoring assembly comprises a first signal monitoring device (11), a second signal monitoring device (12), a first signal source (13) and a second signal source (14); the first signal monitoring device (11) is connected to the lower end surface of the outwardly extending beam (3); the second signal monitoring device (12) is connected to the upper end surface of the base (1); the first signal source (13) and the second signal source (14) are respectively connected to the upper and lower ends of the roof panel reserved hole (17) opened on the silo roof panel (16); It is characterized by: Lifting methods include: Step S1, installing a roof ring (18), columns (19) and a plurality of roof panels (16) on the top surface layer (15); Step S2, installing a lifting device on the top surface layer (15) below the roof panel reserved hole (17) of the roof panel (16); Step S3, lifting the roof panel (16) by a lifting device, and installing the first silo side wall below the roof panel (16); Step S4: remove the lifting device, reinstall the lifting device on the first silo side wall, lift the first silo side wall, and install the second silo side wall below the first silo side wall.

2. The lifting method of the arc-shaped silo integral lifting device according to claim 1, characterized in that: The step S1 of installing a roof ring (18), columns (19) and a plurality of roof panels (16) on the top surface layer (15) comprises: Step S11, installing the column (19) at the column installation hole reserved on the top surface layer (15), after the installation is completed, the roof ring (18) is lifted to the upper part of the column (19) by a car crane, and the roof ring (18) and the column (19) are simply fixed; Step S12, sixteen roof panels (16) are sequentially hoisted onto the top surface layer (15) by a truck crane, wherein one end of the roof panel (16) is placed on the roof ring (18) and welded to the roof ring (18) for fixation, and the other end is placed on the top surface layer (15) in a free state; the multiple roof panels (16) are closely arranged in a circle.

3. The lifting method of the arc-shaped silo integral lifting device according to claim 2, characterized in that: Said step S2, installing a lifting device on the top surface layer (15) below the roof panel reserved hole (17) of said roof panel (16) comprises: Step S21, using anchor bolts (10) to pass through the base anchoring sheet (9) on the top surface layer (15) below the roof panel reserved hole (17) of the roof panel (16) to fix the base (1) on the top surface layer (15), installing a hydraulic jacking device (4) on the base (1), installing a jacking platform (2) on the hydraulic jacking device (4), installing an outward-extending beam (3) on the jacking platform (2), installing an electric hoist (5) on the outward-extending beam (3), connecting a lifting chain (6) to the electric hoist (5), connecting a lifting hook (7) to the other end of the lifting chain (6), and connecting a supporting longitudinal beam (8) between the lower end surface of the outward-extending beam (3) and the jacking platform (2); Step S22, installing the first signal monitoring device (11) on the lower end surface of the extended beam (3); installing the second signal monitoring device (12) on the upper end surface of the base (1); installing the first signal source (13) and the second signal source (14) on the upper and lower ends of the roof panel reserved hole (17) opened on the silo roof panel (16), respectively; so that the first signal monitoring device (11) and the second signal monitoring device (12) can transmit signals in real time and be received by the first signal source (13) and the second signal source (14).

4. The lifting method of the arc-shaped silo integral lifting device according to claim 3 is characterized in that: The step S3, lifting the roof panel (16) by a lifting device and installing the first silo side wall below the roof panel (16) comprises: Step S31, firstly, the jacking platform (2) is lifted to the designed height by controlling the hydraulic jacking device (4) of the lifting device, and then the lifting hook (7) is hung on the first pull ring (20) of the roof panel (16), and the first signal monitoring device (11), the second signal monitoring device (12), the first signal source (13) and the second signal source (14) are turned on to perform initial calibration. After the initial calibration is completed, the electric hoist (5) is turned on to lift the roof panel (16) as a whole. During the lifting process, the horizontal and vertical displacements of the lifting process are monitored in real time by computer analysis software, and adjustments are made in time according to the monitoring results; Step S32, after the roof panel (16) is lifted to the design height, the electric hoist (5) is turned off and the lifting result is finally checked by computer analysis software. If there is no difference in the values, the first silo side wall is installed at the bottom of the roof panel (16), and the lifting device for lifting the roof panel (16) is removed to complete the overall lifting of the curved roof panel; if there is a difference in the values, a local adjustment is performed by turning on the electric hoist (5) corresponding to the roof panel (16) with a larger deviation. After the adjustment is completed, the first silo side wall is installed at the bottom of the roof panel (16), and the first silo side wall and the roof panel (16) are connected by welding.

5. The lifting method of the arc-shaped silo integral lifting device according to claim 4, characterized in that: The step S4, removing the lifting device, reinstalling the lifting device on the first silo side wall, lifting the first silo side wall, and installing the second silo side wall below the first silo side wall, comprises: Step S41, on the top surface layer (15), a lifting device is installed on the side wall of the first silo, and the installation steps are the same as step S21, the first signal monitoring device (11) is installed on the lower end surface of the extended beam (3); the second signal monitoring device (12) is installed on the upper end surface of the base (1); the first signal source (13) is installed at the second pull ring (21) on the inner side of the side wall of the first silo; so that the first signal monitoring device (11) and the second signal monitoring device (12) can transmit signals in real time and be received by the first signal source (13); Step S42, the jacking platform (2) is lifted to the designed height by controlling the hydraulic jacking device (4) of the lifting device, and then the lifting hook (7) is hung on the second pull ring (21) of the first silo side wall, and the first signal monitoring device (11), the second signal monitoring device (12) and the first signal source (13) are turned on for initial calibration. After the initial calibration is completed, the electric hoist (5) is turned on to lift the entire side wall of the first silo. During the lifting process, the horizontal and vertical displacements of the lifting process are monitored in real time by computer analysis software, and adjustments are made in time according to the monitoring results; after the adjustment is completed, the second silo side wall is connected below the first silo side wall.

6. The lifting method of the arc-shaped silo integral lifting device according to claim 5, characterized in that: After the second silo side wall is installed, the lifting device lifts the second silo side wall and installs the third silo side wall below the second silo side wall. This process is repeated until all silo side walls are installed.

7. The lifting method of the arc-shaped silo integral lifting device according to claim 2, characterized in that: A plurality of roof panels (16) are connected by welding.

8. The lifting method of the arc-shaped silo integral lifting device according to claim 6, characterized in that: After all lifting is completed, disassemble and remove the lifting device.

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