Method for installing a silo

Abstract

The present application relates to the technical field of building engineering, and is specifically a silo installation construction method, a stand column is fixed with a pre-buried plate on a concrete foundation, a stand column lifting lug is welded on the stand column, a hole is opened in a silo top plate, and a silo lifting lug is welded on the outer hole edge, an electric hoist is hung with the stand column lifting lug and the silo lifting lug respectively, the electric hoist is started to hoist the silo top to the design height, the silo top is welded with the uppermost silo wall weld, the silo is lowered after the welding is completed, the silo lifting lug is welded on the lower part of the uppermost silo wall, the whole silo is lifted to the design height again, the interface between the silo wall and the next silo wall is welded after the lifting is completed, and the above steps are repeated until the whole silo is installed. The present application avoids the process of hoisting and correcting multiple times when layer by layer erecting, completely avoids the risk of high-altitude operation in the traditional erecting method, significantly reduces the safety hazards such as falling from a high place and object impact, does not need to set up full-frame scaffolding or large operation platforms, and is flexible in equipment arrangement.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically a method for installing silos. Background Technology

[0002] Silos are widely used in industries such as building materials, power, metallurgy, and grain storage and transportation for storing bulk materials. The traditional silo installation method mainly adopts the forward installation method, that is, starting from the bottom of the silo, installing the silo walls layer by layer upwards, and finally installing the top of the silo.

[0003] In existing technologies, the upright mounting method has the following obvious shortcomings: High dependence on machinery: The direct installation method requires the use of large lifting machinery (such as tower cranes and truck cranes) to assist in the hoisting and positioning of each section of the warehouse wall. The machinery occupancy time is long, the coordination is complex, and the equipment entry and exit costs are high. Working at heights poses significant safety risks: As the height of the silos increases, construction workers need to perform welding, alignment, and other operations on work surfaces tens of meters high, which presents major safety risks such as falls from heights and being struck by objects. Construction progress is limited: the direct installation method requires installation and alignment layer by layer, and although the process is closely linked, the efficiency is low and it is significantly affected by factors such as weather and machinery allocation. High requirements for construction site: Large lifting machinery requires sufficient operating radius and passage, which is difficult to implement in narrow sites with existing buildings nearby.

[0004] In recent years, although some inverted installation methods (such as the hydraulic jack lifting method) have emerged, their equipment is complex, synchronous control is difficult, and they often require dedicated hydraulic systems, resulting in high costs and limited adoption. Therefore, there is an urgent need for a new silo installation method that is efficient, safe, simple in equipment, and highly adaptable. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a silo installation construction method, which aims to provide a silo installation construction method with fast construction speed, low cost, safety and reliability and strong site adaptability.

[0006] The technical solution adopted by this invention to solve its technical problem is: A method for installing silos, comprising the following steps: S1. Fabricate the column and fix it to the embedded plate on the concrete foundation. The column is equipped with column lifting lugs. S2. Make a hole in the top plate of the silo and weld the silo lifting lugs to the outer edge of the hole; S3. Weld a lining plate to the inner side of the silo top plate at the position corresponding to the welding position of the silo lifting lugs; S4. Suspend both ends of the electric hoist on the column lifting lug and the silo lifting lug respectively; S5. Start the electric hoist to lift the top of the silo. After lifting the top of the silo to the designed height, weld the butt weld between the top of the silo and the uppermost silo wall. S6. After welding is completed, lower the welded silo. At this time, the column is located inside the silo. Remove the silo lifting lugs and weld them to the lower part of the uppermost silo wall. Then, attach a lining plate to the outside of the silo wall and lift the entire silo to the design height again. S7. After lifting into position, weld the interface between the wall of this bin and the wall of the next bin. S8. Repeat steps S6 and S7 until the entire silo is installed.

[0007] Compared with the prior art, the beneficial effects of the present invention are: This invention employs an inverted lifting method, avoiding the multiple hoisting and adjustment processes required for layer-by-layer installation. Throughout the construction process, the maximum height that construction workers can reach is no more than 3 meters, with the vast majority of work completed on the ground or at low altitudes. This completely eliminates the risks of working at heights inherent in traditional installation methods, significantly reducing safety hazards such as falls from heights and being struck by objects. It eliminates the need for heavy lifting machinery such as tower cranes and large truck cranes, reducing machinery rental and access costs. Furthermore, it eliminates the need for full-scale scaffolding or large operating platforms, allowing for flexible equipment layout. It is suitable for construction sites with limited space and restricted surrounding environments, and is particularly well-suited for silo construction in renovation projects or expansions of factory areas.

[0008] As a preferred embodiment, a further technical solution of the present invention is: Preferably, the design height is greater than the width of each steel plate strip in the silo wall.

[0009] Preferably, multiple columns are evenly arranged around the center of the silo, each column corresponds to one electric hoist, and each electric hoist corresponds to a set of column lifting lugs and silo lifting lugs.

[0010] Preferably, the power supply for all electric hoists is connected to the same controller.

[0011] Preferably, the thickness of the lining plate is greater than the thickness of the silo top plate or the base material of the silo wall, and the area of ​​the lining plate is greater than the area of ​​the bottom plate of the silo lifting lug. The lining plate reinforces the stress-bearing area of ​​the silo lifting lug, preventing localized deformation or tearing; welding operations are performed under stable conditions, facilitating quality control and inspection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is the present invention. Figure 1 Enlarged view of part A in the image; Figure 3 This is a schematic diagram of the structure after the top of the silo is connected to the uppermost silo wall in this invention; Explanation of reference numerals in the attached diagram: 1. Column; 2. Embedded plate; 3. Column lifting lug; 4. Diagonal brace; 5. Electric hoist; 7. Silo lifting lug; 8. Silo top plate; 9. Silo wall. Detailed Implementation

[0013] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0014] A silo installation construction method, such as Figures 1 to 3 As shown, proceed as follows: S1. Construct columns. Multiple columns are evenly arranged around the center of the silo. Each column is fixed to an embedded plate on the concrete foundation. Each column is welded with a column lifting lug. In this embodiment, diagonal bracing is also provided between the column and the embedded plate to improve the stability of the column.

[0015] S2. Make a hole in the top plate of the silo and weld the silo lifting lugs to the outer edge of the hole.

[0016] S3. A lining plate is welded to the inner side of the silo top plate at the position corresponding to the welding position of the silo lifting lug. The thickness of the lining plate is greater than the thickness of the silo top plate or the silo wall base material, and the area of ​​the lining plate is greater than the area of ​​the bottom plate of the silo lifting lug, to ensure the integrity of the silo top plate and uniform stress distribution.

[0017] S4. Each column is equipped with an electric hoist. One end of the electric hoist is suspended on the column lifting lug, and the other end is suspended on the silo lifting lug.

[0018] S5. Start the electric hoist to lift the top of the silo. After lifting the top of the silo to the designed height, weld the butt weld between the top of the silo and the uppermost silo wall.

[0019] S6. After welding is completed, lower the welded silo. At this time, the column is located inside the silo. Remove the silo lifting lugs and weld them to the lower part of the uppermost silo wall. Then, attach a lining plate to the outside of the silo wall and lift the entire silo to the design height again.

[0020] S7. After lifting into position, weld the interface between the wall of this bin and the wall of the next bin.

[0021] S8. Repeat steps S6 and S7 until the entire silo is installed.

[0022] In this embodiment, the design height is the lifting height of each electric hoist, which is greater than the width of each steel plate in the bin wall to ensure sufficient construction space.

[0023] In this embodiment, the control power supply of all electric hoists is connected to the same controller, so that the electric hoists can operate together and ensure the balance of the silo top and silo walls during lifting.

[0024] Taking a steel silo with a diameter of 12m and a height of 38m as an example, the installation method of this invention is carried out using the following specific steps: S1. Construct 36 steel columns and fix them to the concrete foundation using embedded plates at evenly distributed positions around the circumference.

[0025] S2. Make 36 lifting holes on the top plate of the silo and weld the silo lifting lugs to the outer edge of each hole.

[0026] S3. Weld a lining plate on the back side (inside the top plate of the silo) of the lifting lug welding position. The lining plate should be thicker than the top plate of the silo and twice the width of the bottom plate of the lifting lug of the silo.

[0027] S4. Suspend the upper hooks of 36 electric hoists with a rated lifting capacity of 5t to the lifting lugs on the column, and suspend the lower hooks to the lifting lugs on the top plate of the warehouse; connect the power lines of the 36 electric hoists to the same synchronous controller, and debug to ensure that all electric hoists start and stop in a consistent manner.

[0028] S5. Each steel plate of the silo wall is 1.2m wide. Start the electric hoist to lift the silo top as a whole by 1.8m, so that there is an operating space of 1.8m between the silo top and the uppermost silo wall. After the silo top and the uppermost silo wall are connected, weld the butt weld between the two.

[0029] S6. After welding is completed, the silo is slowly lowered, at which point the column is located inside the silo; the silo lifting lugs are removed from the top plate of the silo and welded to the lower part of the uppermost silo wall, and a lining plate is installed on the outside of the uppermost silo wall, and the entire silo is lifted again by 1.8m.

[0030] S7. After the lifting is in place, weld the circumferential weld between the wall of this silo and the wall of the next silo.

[0031] S8. Repeat steps S6 and S7, installing one strip at a time downwards until all bin walls are installed.

[0032] During construction, an inverted lifting method was adopted, avoiding the multiple hoisting and correction procedures required for layer-by-layer installation. Multiple electric hoists worked simultaneously to prevent skewing or jamming, resulting in fast lifting speeds and tight workflow, effectively shortening the construction period. The entire construction process did not use tower cranes, large truck cranes, or other heavy equipment, eliminating the need for large machinery access routes. The equipment layout was flexible and suitable for construction sites with narrow spaces and limited surrounding environments. All welding operations were carried out at a height of no more than 2 meters above the ground, without the use of any lifting machinery or scaffolding, shortening the construction period and ensuring high safety.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A method for installing and constructing a silo, characterized in that, Follow these steps: S1. Fabricate the column and fix it to the embedded plate on the concrete foundation. The column is equipped with column lifting lugs. S2. Make a hole in the top plate of the silo and weld the silo lifting lugs to the outer edge of the hole; S3. Weld a lining plate to the inner side of the silo top plate at the position corresponding to the welding position of the silo lifting lugs; S4. Suspend both ends of the electric hoist on the column lifting lug and the silo lifting lug respectively; S5. Start the electric hoist to lift the top of the silo. After lifting the top of the silo to the designed height, weld the butt weld between the top of the silo and the uppermost silo wall. S6. After welding is completed, lower the welded silo. At this time, the column is located inside the silo. Remove the silo lifting lugs and weld them to the lower part of the uppermost silo wall. Then, attach a lining plate to the outside of the silo wall and lift the entire silo to the design height again. S7. After lifting into position, weld the interface between the wall of this bin and the wall of the next bin. S8. Repeat steps S6 and S7 until the entire silo is installed.

2. The silo installation and construction method according to claim 1, characterized in that: The design height is greater than the width of each steel plate strip in the silo wall.

3. The silo installation and construction method according to claim 1, characterized in that: Multiple columns are evenly arranged around the center of the silo. Each column corresponds to an electric hoist, and each electric hoist corresponds to a set of column lifting lugs and silo lifting lugs.

4. The silo installation and construction method according to claim 3, characterized in that: All electric hoists are connected to the same controller.

5. The silo installation and construction method according to claim 1, characterized in that: The thickness of the lining plate is greater than the thickness of the silo top plate or the silo wall material, and the area of ​​the lining plate is greater than the area of ​​the silo lifting lug bottom plate.

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