Silo funnel template supporting system

Abstract

The utility model relates to the technical field of silos, in particular to a silo funnel formwork supporting system. The silo hopper formwork supporting system is reasonable, easy to transfer and large in activity space, a hopper bottom opening serves as a boundary, an upper all-round scaffold is adopted above the hopper bottom opening to serve as an upper supporting system so as to adapt to the shape of a hopper structure layer, and large-diameter vertical steel stand columns are arranged on the bottommost layer below the hopper bottom opening. A transfer steel beam is arranged above each large-diameter vertical steel column to form a transfer layer, a bailey truss is erected above the transfer layer, and I-shaped steel is vertically laid between the upper portion of the bailey truss and the upper all-round scaffold. By the adoption of the silo hopper formwork supporting system, a large moving space can be obtained, the safety space during operation is improved, meanwhile, the construction amount is reduced, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of silos, in particular to a silo hopper template support system. Background Art

[0002] A silo is a large-capacity coal storage facility. It primarily consists of the silo wall, roof, and internal hopper. The hopper, typically located in the lower middle portion of the silo, performs functions such as storage, metering, and unloading, making it one of the silo's primary functional components. Hoppers are often considered "super-hazardous" components due to their high height, weight, and span. Their total structural load is approximately 31,104 kN (3,110 tons). The construction load of the hopper structure is transmitted through a support system to ensure safe construction. During hopper construction, the hopper support system is directly related to production safety and cost, making it a critical process.

[0003] The product silo project of a coal mine preparation plant is as follows: there are two silos, each with a capacity of 30,000 tons. The silo wall 1 is 500mm thick and has an inner diameter of ￠30m. The funnel structure layer consists of a frame beam 2, a flat plate 3, a ring beam 4, and a funnel inclined plate 5. The cross-sectional diagram of the funnel structure layer is shown in the figure below. Figure 1 As shown in the figure, the funnel structure layer has the characteristics of high support height, large component load, and large structural span. The conventional silo funnel formwork support system uses a full-height scaffolding as the support system. Figure 2 As shown in the figure, affected by the structural load, the lower full-hall scaffolding is densely arranged, the amount of steel pipes used is large, the rental cost is high, the working space is tight, and the construction period is long, accounting for nearly 40% of the total construction period of the silo structure. The workers are obviously concentrated on working. After the frame is erected, it is basically impossible to walk inside, and the escape route for personnel is limited. Therefore, there is an urgent need for a silo funnel template support system that is reasonable, easy to turn around, and has a large activity space. Summary of the Invention

[0004] The purpose of the utility model is to provide a silo hopper template support system which is reasonable, easy to turn around and has a large activity space.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The silo funnel formwork support system is bounded by the bottom of the funnel. The upper full-floor scaffolding is used as the upper support system above the bottom of the funnel to adapt to the shape of the funnel structure layer. Large-diameter vertical steel columns are set on the lowest layer below the bottom of the funnel. A conversion steel beam is set above each large-diameter vertical steel column to form a conversion layer. A Bailey frame is set up above the conversion layer, and I-beams are laid vertically between the Bailey frame and the upper full-floor scaffolding.

[0007] Principle: The conventional lower full-height scaffolding support system below the bottom of the funnel is replaced by large-diameter vertical steel columns, conversion steel beams, Bailey frames, and I-beams, thereby obtaining a larger activity space while reducing the construction workload and shortening the construction period. The upper portion is still laid using the upper full-height scaffolding, which is suitable for the funnel structure layer composed of frame beams, flat plates, ring beams, and funnel inclined plates. Among them, the specific laying parameters of the large-diameter vertical steel columns, conversion steel beams, Bailey frames, I-beams, and the density of the upper full-height scaffolding are determined according to the funnel structure layer and the specific construction conditions. This can be determined by those skilled in the art through conventional settings and conventional simulation experiments.

[0008] To further verify the feasibility of this support system, a 1:50 scale simulation model was constructed in the laboratory to conduct physical stress simulations and confirm the feasibility of the solution. Additionally, industrial trials were conducted to monitor the stress and deformation of key components of the support system, including large-diameter vertical steel columns, Bailey frames, transfer steel beams, and upper full-height scaffolding. This confirmed the feasibility of the support system.

[0009] The beneficial effects produced by the present invention are as follows: the silo funnel template support system of the present invention can obtain a larger activity space, improve the safety space during operation, and also reduce the construction volume and shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0012] Figure 1 This is a cross-sectional diagram of the funnel structure layer;

[0013] Figure 2 This is a schematic diagram of the structure of a conventional silo hopper formwork support system;

[0014] Figure 3 This is a structural diagram of the silo hopper template support system described in the present utility model;

[0015] Figure 4 This is a schematic diagram of the monitoring points (monitoring points are marked in the shape of clouds in the figure).

[0016] In the figure: 1-silo wall, 2-frame beam, 3-flat plate, 4-ring beam, 5-funnel inclined plate, 6-upper full-floor scaffolding, 7-large diameter vertical steel column, 8-conversion steel beam, 9-Bailey frame, 10-I-beam, 11-funnel. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0018] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] like Figure 3 As shown, the silo funnel formwork support system is bounded by the bottom of the funnel 11. An upper full-floor scaffolding 6 is used as the upper support system above the bottom of the funnel 11 to adapt to the shape of the funnel structure layer. Large-diameter vertical steel columns 7 are set on the lowest layer below the bottom of the funnel 11. A conversion steel beam 8 is set above each large-diameter vertical steel column 7 to form a conversion layer. Bailey frames 9 are set above the conversion layer, and I-beams 10 are laid vertically between the Bailey frames 9 and the upper full-floor scaffolding 6.

[0022] Principle description: The conventional lower full-height scaffolding support system below the bottom of the funnel 11 is replaced by large-diameter vertical steel columns 7, conversion steel beams 8, Bailey frames 9, and I-beams 10, thereby obtaining a larger activity space while reducing the construction volume and shortening the construction period. The upper part is still laid using the upper full-height scaffolding 6, which is suitable for the funnel structure layer composed of frame beams 2, flat plates 3, ring beams 4, and funnel inclined plates 5. Among them, the specific laying parameters of the large-diameter vertical steel columns 7, conversion steel beams 8, Bailey frames 9, I-beams 10, and the density of the upper full-height scaffolding 6 are determined according to the funnel structure layer and the specific construction conditions. This can be obtained by those skilled in the art through conventional settings and conventional simulation experiments.

[0023] To further verify the feasibility of the support system, a 1:50 simulation model was built in the laboratory to simulate the physical load and confirm the feasibility of the solution. In addition, industrial tests were also carried out to monitor the load and deformation of the main components of the support system, such as the large-diameter vertical steel columns 7, Bailey frames 9, transfer steel beams 8, and upper full-height scaffolding 6. The monitoring points are as follows: Figure 4 As shown, the feasibility of the support system is confirmed.

[0024] Taking the construction of the product bin funnel 11 of a coal mine coal preparation plant mentioned in the background technology of this application as an example, if the full-floor scaffolding support system used in the past is used as the overall support system, the rental fee during the construction period is about 250,000 yuan, and the construction period is 68 days. After the support system is optimized, the use of steel pipes is reduced, the rental fee can be saved by about 80,000 yuan, the construction period can be saved by nearly 10 days, the labor input can be reduced by 20×300×10=60,000 yuan, and the equipment rental fee and water and electricity costs can be reduced by about 10,000 yuan. The cost of two silos can be saved by 300,000 yuan.

[0025] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. Silo hopper formwork support system, characterized by: With the bottom of the funnel (11) as the boundary, an upper full-floor scaffolding (6) is used as the upper support system above the bottom of the funnel (11) to adapt to the shape of the structural layer of the funnel (11). A large-diameter vertical steel column (7) is set at the bottom layer below the bottom of the funnel (11). A conversion steel beam (8) is set above each large-diameter vertical steel column (7) to form a conversion layer. A Bailey frame (9) is set above the conversion layer. An I-beam (10) is laid vertically between the Bailey frame (9) and the upper full-floor scaffolding (6).

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