Lifting method of overall lifting device for circular-arc-shaped silo

Abstract

The invention relates to a lifting method of a circular-arc-shaped silo overall lifting device. The lifting device comprises a base, a jacking platform, an overhanging cross beam, a jacking assembly, a pulling assembly and a monitoring assembly. The lifting method comprises the steps that S1, the roof circular rings, the stand columns and the multiple roof panels are installed on the top surface layer; s2, a lifting device is installed on the top surface layer and below the roof panel preformed hole of the roof panel; s3, the roof panel is lifted through a lifting device, and a first silo side wall is installed below the roof panel; and S4, the lifting device is dismantled, the lifting device is reinstalled on the side wall of the first silo, the side wall of the first silo is lifted, and a second silo side wall is installed below the side wall of the first silo. According to the lifting method of the overall lifting device for the circular-arc-shaped silo, the existing defects are overcome, and the overall lifting device is convenient to disassemble and can be repeatedly used.

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 divided into two categories: agricultural silos and industrial silos. Agricultural silos are used to store granular and powdery materials such as grain and feed; industrial silos are used to store bulk materials such as coke, cement, salt, and sugar. The cost of mechanized silos is generally about 1 / 3 higher than that of mechanized room-type silos, but they can shorten the material loading and unloading process, reduce operating and maintenance costs, eliminate heavy bagging operations, and facilitate mechanized and automated operations. Therefore, they have become one of the most important forms of granaries.

[0003] When installing the existing arc-shaped silos, the roof is assembled first, and then the silo side wall is 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 the use of larger hoisting equipment because the arc-shaped silo roof is large in size and needs to be hoisted to a high height, and the installation process is long, which will result in higher installation costs;

[0004] Therefore, in order to solve the above problems, a lifting method of an arc-shaped silo overall 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 beam, the outward beam is connected to the lifting assembly, and the arc-shaped silo roof panel is pulled up by the lifting assembly; the monitoring assembly is arranged on the base and the outward beam;

[0008] The jacking assembly includes a hydraulic jacking device, the lower end of which is connected to the base and the upper end of which 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 crossbeam, 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 component 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 extended 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 holes opened in 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 reserved hole of the roof panel 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, installing the roof ring, columns and multiple roof panels on the top surface layer, comprises:

[0017] Step S11, installing the column at the column installation hole reserved on the top surface layer, after the installation is completed, the roof ring is lifted to the upper part of the column by a car crane, and the roof ring is simply fixed to the column;

[0018] Step S12, sixteen roof panels are hoisted onto the top surface layer in sequence by a car 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 arranged closely in a circle.

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

[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 of the roof panel to fix the base on the top surface layer, installing a hydraulic jacking device on the base, installing a jacking platform on the hydraulic jacking device, installing an outward beam on the jacking platform, installing an electric hoist on the outward beam, connecting a lifting chain to the electric hoist, connecting a lifting hook to the other end of the lifting chain, and connecting a supporting longitudinal beam between the lower end surface of the outward 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, lifting the roof panel by a lifting device and installing the first silo side wall below the roof panel comprises:

[0023] Step S31, firstly, the jacking platform is lifted 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, the first signal monitoring device, the second signal monitoring device, the first signal source and the second signal source are turned on for initial calibration, after the initial calibration is completed, the electric hoist is turned on to lift the roof panel as a whole, and the horizontal and vertical displacements of the lifting process are monitored in real time by computer analysis software during the lifting process, and adjustments are made in time according to the monitoring results;

[0024] Step S32, after the roof panel is lifted to the designed height, turn off the electric hoist and perform a final check on the lifting result through computer analysis software. If there is no difference in the values, install the first silo side wall at the bottom of the roof panel, and remove the lifting device for lifting the roof panel to complete the overall lifting of the curved roof panel; if there is a difference in the values, make a local adjustment by turning on the electric hoist corresponding to the roof panel with a larger deviation. After the adjustment is completed, install the first silo side wall at the bottom of the roof panel, and connect the first silo side wall and the roof panel 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] Step S41, on the top surface layer, 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 is installed on the lower end surface of the extended beam; the second signal monitoring device is installed on the upper end surface of the base; the first signal source is installed at the second pull ring on the inner side of the side wall of the first silo; 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;

[0027] Step S42, lift the jacking platform to the designed height by controlling the hydraulic jacking device of the lifting device, then hang the lifting hook on the second pull ring of the first silo side wall, start the first signal monitoring device, the second signal monitoring device and the first signal source for initial calibration, after the initial calibration is completed, start the electric hoist to lift the first silo side wall as a whole, monitor the horizontal and vertical displacements of the lifting process in real time through computer analysis software during the lifting process, and make adjustments in time according to the monitoring results; after the adjustment is completed, connect the second silo side wall 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 setting a base, a jacking platform, an outward-extending 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 outward-extending beam, the outward-extending 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 outward-extending 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 outward-extending 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 displacements 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 It 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 It is a side view of the arc-shaped silo integral lifting device of the present invention;

[0038] Figure 7 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] Fig. 9 is a detailed view of the position of the first pull ring of the present invention;

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

[0042] Fig.11 It is a schematic diagram of the installation of the second silo side wall of the present invention;

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

[0044] Fig.13 This is a schematic diagram of the angle when the side wall of the second silo of the present invention is installed;

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

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

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

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

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

[0050] Fig.19 It is a detailed diagram of step S4 of the lifting method of the present invention.

[0051] In the figure: 1. base; 2. jacking platform; 3. outward extending beam; 4. hydraulic jacking device; 5. electric hoist; 6. lifting chain; 7. lifting hook; 8. supporting 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 of 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 directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on 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 in conjunction with 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 comprises a base 1, a jacking platform 2, an outwardly extending beam 3, a jacking assembly, a pulling assembly and a monitoring assembly; the base 1 is connected to a 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 outwardly extending beam 3, the outwardly extending beam 3 is connected to the pulling assembly, and the arc-shaped silo roof panel 16 is pulled up by the pulling assembly; the monitoring assembly is arranged on the base 1 and the outwardly extending 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 outwardly extending 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 outwardly extending crossbeam 3, the lifting chain 6 is connected to the electric hoist 5, 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 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;

[0058] like Figure 7 As shown, the base 1 is connected to the top surface layer 15 of the silo through four groups of anchoring assemblies, and the four groups of anchoring assemblies are respectively connected to the four corners of the base 1. The anchoring assembly includes two base anchoring plates 9, and the two base anchoring plates 9 are connected to the two sides of the base 1. The base anchoring plates 9 are connected with anchor bolts 10, and are connected to the top surface layer 15 of the silo through the anchor bolts 10.

[0059] Specifically, the column 19 is installed 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 the car crane, and the roof ring 18 and the column 19 are simply fixed; the sixteen roof panels 16 are successively lifted to the top surface layer 15 by the car crane, wherein one end of the roof panel 16 is placed on the roof ring 18 and welded to the roof ring 18 for fixing, and the other end is placed on the top surface layer 15 and is in a free state; multiple roof panels 16 are closely arranged in a circle. 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 on 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 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, and 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, 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 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 H2=L1sinα, 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 be an angle γ between the second signal source 14 and the second signal monitoring device 12. The distance L2 between the two can be obtained through the signal receiving time. 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. The distance H from the first signal monitoring device 11 to the top surface layer is known to be a constant. Then the vertical distance H3 from the first signal source 13 to 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. Then the angle β can be known to be arccos(H3 / l). According to the principle of equal parallel angles and similar triangles, it can be known that the angle of the larger triangle 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 the three-dimensional coordinate system of each curved roof panel, then the changes of the horizontal coordinates and vertical coordinates of the bottom of the curved roof panel can be obtained in real time, and by comparing the coordinates of the bottom of each roof panel 16, the control of the horizontal and vertical displacements during the overall lifting process is ensured. When the difference in coordinate values ​​is large, an alarm is automatically issued and the area with a large coordinate difference is displayed, and separate lifting adjustments are made for the areas with large differences.

[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 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 first silo side wall as a whole. During the lifting process, the horizontal and vertical displacements during 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.

[0065] Specifically, after the second silo side wall is installed, the lifting device lifts the second silo side wall, and the third silo side wall is installed below the second silo side wall, and the lifting is repeated until the installation of the third silo side wall is completed. After the lifting is completed, the lifting device is disassembled and removed.

[0066] Specifically, the horizontal initial displacement between the first signal monitoring device 11 and the first signal source 13 measured in the preliminary debugging before lifting is known as n0, and the horizontal initial 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, 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, and adjustments are made according to the position of the deviation point. Local adjustments are made by opening the electric hoist 5 corresponding to the side wall of the first silo with a larger deviation, and then rechecking is performed after the adjustment is completed.

[0068] Specifically, the vertical displacement monitoring of the installation process of the first silo side wall during the lifting process (taking the lifting of the first silo side wall as an example): the vertical distance H5 between the first signal monitoring device 11 and the first signal source 13 during the lifting process is L3sinα, and the distance H6 between the second signal monitoring device 12 and the first signal source 13 during the lifting process is L4sinβ. The vertical displacement between the first signal monitoring device 11 and the second signal monitoring device 12 is known to be H7, the vertical displacement from the first signal source 13 to the bottom of the first silo side wall is known to be H8, and the vertical displacement between the second signal monitoring device 12 and the top surface layer is ΔH1, then the vertical displacement between the bottom of the first section of the silo and the top surface layer is l=H7-H8-L3sinα+ΔH1=L4sinβ-H8+ΔH1. A three-dimensional coordinate system of the silo side wall is established according to 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 the horizontal and vertical displacements in 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, and separate 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, the columns 19 and the plurality of roof panels 16 on the top surface layer 15 comprises:

[0072] 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 the car crane, and the roof ring 18 and the column 19 are simply fixed;

[0073] 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 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.

[0074] Step S2, installing 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 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 outwardly extending cross beam 3 on the jacking platform 2, installing an electric hoist 5 on the outwardly extending cross 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 outwardly extending cross beam 3 and the jacking platform 2;

[0077] Step S22, install the first signal monitoring device 11 on the lower end surface of the extended 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] 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 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 of the lifting process are monitored in real time by computer analysis software, and adjustments are made in time according to 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 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 H2=L1sinα, 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 through the signal receiving time. 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. The distance H from the first signal monitoring device 11 to the top surface layer is known to be a constant. Then the vertical distance H3 from the first signal source 13 to 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. Then the angle β can be known to be arccos(H3 / l). According to the principle of equal parallel angles and similar triangles, it can be known that the angle of the larger triangle 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 the three-dimensional coordinate system of each curved roof panel, then the changes of the horizontal coordinates and vertical coordinates of the bottom of the curved roof panel can be obtained in real time, and by comparing the coordinates of the bottom of each roof panel 16, the control of the horizontal and vertical displacements during the overall lifting process is ensured. When the difference in coordinate values ​​is large, an alarm is automatically issued and the area with a large coordinate difference is displayed, and separate lifting adjustments are made for the areas with large differences.

[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 comprises:

[0086] Step S41, on the top surface layer 15, the 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;

[0087] Step S42, lift the jacking platform 2 to the designed height by controlling the hydraulic jacking device 4 of the lifting device, then hang the lifting hook 7 on the second pull ring 21 of the first silo side wall, turn on the first signal monitoring device 11, the second signal monitoring device 12 and the first signal source 13 for initial calibration, after the initial calibration is completed, turn on the electric hoist 5 to lift the first silo side wall as a whole, monitor the horizontal and vertical displacements of the lifting process in real time through computer analysis software during the lifting process, and make adjustments in time according to the monitoring results; after the adjustment is completed, connect the second silo side wall below the first silo side wall.

[0088] After the second silo side wall is installed, the lifting device lifts the second silo side wall, and the third silo side wall is installed under the second silo side wall, and the lifting is repeated until the installation of the third silo side wall is completed. After the lifting is completed, the lifting device is disassembled and removed.

[0089] The horizontal initial displacement between the first signal monitoring device 11 and the first signal source 13 measured in the preliminary debugging before lifting is known as n0, and the horizontal initial 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 therebetween is known. Therefore, the horizontal distance n1=L3cosα between the first signal monitoring device 11 and the first signal source 13 during the lifting process is displaced, and the distance between the second signal monitoring device 12 and the first signal source 13 is L4. The angle β therebetween is known. Therefore, the horizontal distance m1=L4cosβ between the second signal monitoring device 12 and the first signal source 13 during the lifting process is displaced. If n1=n0, m1=m0, it indicates 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 a larger deviation, and then rechecking is performed after the adjustment is completed.

[0091] Vertical displacement monitoring of the installation process of the first silo side wall during the lifting process (taking the lifting of the first silo side wall 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 to be H7, the vertical displacement from the first signal source 13 to the bottom of the first silo side wall is known to be H8, and the vertical displacement between the second signal monitoring device 12 and the top surface layer is ΔH1, then the vertical displacement between the bottom of the first section of the silo and the top surface layer is l = H7-H8-L3sinα+ΔH1=L4sinβ-H8+ΔH1. A three-dimensional coordinate system of the silo side wall is established according to 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 the horizontal and vertical displacements in 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, and separate lifting adjustments are made to the areas with large differences.

[0092] The lifting method of the circular arc silo integral lifting device comprises the following steps: the base 1, the jacking platform 2, the outwardly extending beam 3, the jacking assembly, the lifting assembly and the monitoring assembly are provided; 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 outwardly extending beam 3, the outwardly extending beam 3 is connected to the lifting assembly, and the arc silo roof panel 16 is pulled up by the lifting assembly; the monitoring assembly is provided on the base 1 and the outwardly extending 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 outwardly extending beam 3; it can be adjusted according to the jacking height, is easy to disassemble, can be reused, and saves costs. The monitoring assembly can realize the dynamic monitoring of the horizontal and vertical displacement of the arc roof during the jacking 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 the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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 jacking platform (2), an outwardly extending 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 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 outwardly extending beam (3), the outwardly 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 outwardly extending beam (3); The jacking assembly comprises 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); 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 cross 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 roof of the silo; 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 cross 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 a roof panel reserved hole (17) provided on the silo roof panel (16); It is characterized in that 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 means of 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 is characterized in that: The step S1, 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 is characterized in that: The step S2, installing a lifting device on the top surface layer (15) below the roof panel reserved hole (17) of the roof panel (16), comprises: 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) 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 outwardly extending cross beam (3) on the jacking platform (2), installing an electric hoist (5) on the outwardly extending cross 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 outwardly extending cross 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) respectively at the upper and lower ends of the roof panel reserved hole (17) opened on 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).

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 means of 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, 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 a timely manner according to the monitoring results; 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, 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 is 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 outwardly extending 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 first silo side wall 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; 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, and the lifting 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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