Liftable annular slideway platform of silo

Abstract

The invention discloses a liftable annular slide way platform for a silo, which relates to the field of constructional engineering installation and comprises a plurality of steel structure frame bodies, the bottoms of the steel structure frame bodies are fixed on inclined wall sections of the inner wall of the silo, the tops of the steel structure frame bodies are installed on an annular slide way, and the middle sections of the steel structure frame bodies are installed on straight wall sections of the inner wall of the silo through frame body wall attaching pieces; a construction platform capable of ascending and descending along the steel structure frame bodies is installed between every two adjacent steel structure frame bodies, ascending and descending of the construction platform are achieved through a driving system, and the driving system is installed on the construction platform.

Description

Technical Field

[0001] This invention relates to the field of building engineering installation, specifically to a silo liftable annular slide platform. Background Technology

[0002] In existing technologies, two methods are typically used for hoisting operations inside silos, especially in confined spaces such as coal chutes: One approach is to install multiple lifting devices at the top of the steel plate installation point. However, since the top of the silo is mostly a conical shell structure, fixing the lifting equipment is difficult and construction is extremely inconvenient. Another method involves using a suspended platform at the steel plate installation point. However, this method lacks stable support for workers installing the steel plates in the platform, resulting in a high risk factor, difficulty in ensuring safety, and inconvenience for operation.

[0003] The two methods described above have significant drawbacks: not only is the transportation efficiency of materials and equipment low and the operation cycle long, but the construction safety is also poor. Furthermore, they require the rental of equipment such as suspended platforms and a large amount of manpower for material handling, resulting in high costs. In addition, traditional construction platforms are mostly one-time erections, unable to be reused, further limiting their economic efficiency and applicability. Summary of the Invention

[0004] To address the technical problems of low material and equipment transportation efficiency, long operation cycle, poor construction safety, large material handling volume, resulting in high costs and inability to be reused in existing silo hoisting operations, this invention provides a silo lifting ring slide platform.

[0005] This invention is achieved using the following techniques: This invention provides a silo liftable annular slide platform, comprising multiple steel frame bodies. The bottom of the steel frame body is fixed to the inclined wall section of the inner wall of the silo, the top of the steel frame body is installed on the annular slide, and the middle section of the steel frame body is installed on the straight wall section of the inner wall of the silo via frame wall attachments. A construction platform that can be raised and lowered along the steel frame body is installed between two adjacent steel frame bodies. The construction platform is raised and lowered by a drive system installed on the construction platform.

[0006] During implementation, it includes multiple evenly distributed steel frame structures, each consisting of multiple standard sections connected by socket joints.

[0007] The bottom of the steel frame is fixed to the inclined section of the inner wall of the silo, the top of the steel frame is installed on the annular slide, and the middle section of the steel frame is installed on the straight section of the inner wall of the silo through the frame wall attachment; wherein, the frame wall attachment includes a steel pipe connected to the steel frame, the free end of the steel pipe is fixed to a steel plate, the steel plate has expansion bolt holes, and is fixed to the silo wall through expansion bolts.

[0008] A construction platform that can be raised and lowered along the steel structure frame is installed between two adjacent steel structure frames. The construction platform is surrounded by a protective fence. The adjacent protective fence of the two adjacent construction platforms is equipped with an openable and closable connecting door so that operators can bypass the steel structure frame between them and pass continuously on the circular platform.

[0009] The construction platform is raised and lowered via a drive system, which is installed on the construction platform.

[0010] Specifically, the steel frame includes at least two columns equipped with racks. The drive system adopts existing technology and includes a motor, a gear drive group driven by the motor, a fall arrestor, overload protection, limit protection, and an emergency braking device. The output end of the motor is connected to the column through a gear and rack pair, that is, the output end of the motor is connected to the gear drive group to form a gear and rack pair. The gear and rack pair can operably drive the construction platform to climb or descend along the column. The moving speed of the construction platform is controlled at 5m / min. To ensure the stable lifting and lowering of the construction platform, the construction platform is also equipped with a guide wheel group or guide slider, which is fitted and attached to the column without affecting the rack meshing, and is used to bear lateral forces to ensure the smooth lifting and lowering of the platform.

[0011] The drive system and the control system are connected in communication. The control system includes an electrical controller, which includes a built-in synchronizer that enables the linkage and lifting of multiple construction platforms. The electrical controller is located in an electrical control box, which is fixedly installed in the middle of the construction platform.

[0012] The steel frame structure is assembled sequentially from multiple standard sections connected by a socket joint, using a combination of multi-point hydraulic jacking and mechanical climbing assembly. During installation, the jacking device is installed on the already fixed standard sections, and the standard sections to be installed are hoisted using a lifting pole device. Two standard sections are then interlocked, allowing the steel frame structure to be joined section by section until the designed height is reached. After the steel frame structure is installed, an operating platform is installed between adjacent steel frame sections, and the operating platform is connected to the columns via a gear drive assembly.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The silo lifting ring slide platform designed in this invention adopts a multi-point hydraulic jacking or mechanical climbing method, which can synchronously and smoothly lift and lower with the installation height of the steel plate, and achieve precise operation with the lifting weight controlled within 200kg and the lifting speed maintained at 5m / min.

[0014] This invention effectively solves the problems of low material and equipment transportation efficiency and long operation cycle during silo maintenance. It not only greatly improves construction speed and shortens the construction period, but also significantly improves construction safety, making personnel operation on a fixed platform more stable and reliable.

[0015] Meanwhile, this invention has good economic and environmental benefits, saves on machinery rental and manual transportation costs, and can be reused multiple times, making it widely applicable and valuable for promotion. Attached Figure Description

[0016] Figure 1 This is a top view of the overall application.

[0017] Figure 2 This is a schematic diagram of the construction platform installation.

[0018] Figure 3 A structural diagram of the wall-mounted components of the frame.

[0019] Figure 4 This is a structural diagram of the construction platform.

[0020] Figure 5 This is a top-view structural diagram of this application.

[0021] Figure 6 This is a cross-sectional view of the overall structure of this application.

[0022] Figure 7 This is a partial structural diagram of this application.

[0023] Figure 8 This is a structural diagram of the application from a bottom-view perspective.

[0024] Figure 9 This is a bottom installation diagram of the steel structure frame of this application.

[0025] In the diagram: 1. Circular slide; 2. Silo; 3. Steel frame; 4. Frame wall attachments; 5. Construction platform; 6. Connecting door; 7. Expansion bolt holes; 8. Steel pipe; 9. Steel plate; 10. Protective fence; 11. Gear drive assembly; 12. Electrical control box; 13. Motor. Detailed Implementation

[0026] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] A type of silo liftable annular slide platform, taking the reinforcement project of the inner wall of the coal dropping tower in the raw coal shed of the coal preparation plant of Shanxi Ningwu Yushupo Coal Industry Co., Ltd. as an example, such as... Figures 1-8 As shown, it includes multiple evenly distributed steel structure frames 3. In this embodiment, there are 19 sets of steel structure frames 3. Each steel structure frame 3 includes multiple standard sections connected by a socket joint.

[0028] The bottom of the steel frame 3 is fixed to the inclined wall section of the inner wall of the silo 2, and the top of the steel frame 3 is installed on the annular slide 1. The annular slide 1 is made of 16# I-beams and surrounds the top of the silo 2. Its specifications are adapted to the silo 2. In this embodiment, the diameter of the annular slide 1 is 21m. The middle section of the steel frame 3 is installed on the straight wall section of the inner wall of the silo 2 through the frame wall attachment 4. The frame wall attachment 4 includes a steel pipe 8 connected to the steel frame 3. The free end of the steel pipe 8 is fixed to a steel plate 9. The steel plate 9 has expansion bolt holes 7 and is fixed to the silo wall of the silo 2 through expansion bolts.

[0029] Between two adjacent steel frame structures 3, there is a construction platform 5 that can be raised and lowered along the steel frame structure 3. The construction platform 5 has a width of 1200mm and a length of 3000mm. The construction platform 5 is surrounded by a protective fence 10. The adjacent protective fence 10 of the two adjacent construction platforms 5 is equipped with an openable and closable connecting door 6 so that operators can pass around the steel frame structure 3 between them and pass continuously on the circular platform.

[0030] The construction platform 5 is raised and lowered by a drive system, which is installed on the construction platform 5.

[0031] The steel frame 3 includes at least two columns with racks. In this embodiment, the column dimensions are 1508×650mm. The drive system uses commercially available products and is fixed to the construction platform 5 via a rigid mounting bracket. It includes a motor 13, a gear drive assembly 11 driven by the motor 13, and a guide wheel assembly for guiding and bearing lateral forces. The gears in the gear drive assembly 11 mesh with the racks on the columns, forming a rack and pinion pair. The motor 13 drives the construction platform 5 to climb or descend along the columns through this rack and pinion pair, and the moving speed of the construction platform 5 is controlled at 5m / min. The drive system also includes a safety protection system, including a fall arrestor, overload protection, limit protection, and an emergency braking device. The fall arrestor is a centrifugal trigger type, whose trigger gear is constantly meshed with the column rack and automatically locks when the construction platform 5 falls at excessive speed. Limit protection is achieved through upper and lower limit inductive switches installed on the columns.

[0032] The drive system and the control system are connected in communication. The control system includes an electrical controller, which includes a built-in synchronizer that enables the linkage lifting of multiple construction platforms 5. The electrical controller is located in the electrical control box 12, and the electrical control box 12 is fixedly installed in the middle of the construction platform 5.

[0033] The steel structure frame 3 is assembled sequentially from multiple standard sections connected by a socket joint, using a combination of multi-point hydraulic jacking and mechanical climbing assembly. During installation, a jacking device measuring 1350mm × 1350mm × 900mm with a maximum stroke of 1600mm is used. This device is installed on the already installed and secured standard sections. The standard sections to be installed are then hoisted using a lifting pole device, and the two standard sections are interlocked to allow for the gradual extension of the steel structure frame 3 until the designed height is reached. After the steel structure frame 3 is installed, an operating platform is installed between adjacent steel structure frame 3 sections. The operating platform is connected to the uprights via a gear drive assembly 11.

[0034] In use, the electric hoist is installed on the annular slide rail and used to install and transport the steel plates on the inner wall of the silo.

[0035] By comparing the economic benefits of this embodiment with that of conventional suspended platforms for vertical operations, this project saves on the rental costs of suspended platforms and the cost of manually transporting steel plates.

[0036] Suspended platform rental: 45×30×8=10800 yuan; Manual transport: 300 × 35 × 4 = 42,000 yuan Total: 10,800 yuan + 42,000 yuan = 52,800 yuan.

[0037] In this example: 18.5 × 23.55 × 3 = 1.3 tons × 3800 tons / yuan = 4940 yuan; Electric hoist: 800 x 5 = 4000 yuan; Total: 4940 yuan + 4000 yuan = 8940 yuan; Cost savings: 52,800 yuan - 8,940 yuan = 43,860 yuan.

[0038] The scope of protection claimed by this invention is not limited to the specific embodiments described above. Moreover, for those skilled in the art, this invention can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A silo liftable annular slide platform, characterized in that, It includes multiple steel structure frames (3), the bottom of the steel structure frame (3) is fixed to the inclined wall section of the inner wall of the silo (2), the top of the steel structure frame (3) is installed on the annular slide (1), and the middle section of the steel structure frame (3) is installed on the straight wall section of the inner wall of the silo (2) through the frame wall attachment (4); A construction platform (5) that can be raised and lowered along the steel structure frame (3) is installed between two adjacent steel structure frames (3). The construction platform (5) is raised and lowered by a drive system installed on the construction platform (5).

2. The silo liftable annular slide platform according to claim 1, characterized in that: The steel frame (3) includes multiple standard sections connected by socket joints.

3. The silo liftable annular slide platform according to claim 1, characterized in that: The frame wall attachment (4) includes a steel pipe (8) connected to the steel structure frame (3). The free end of the steel pipe (8) is fixed to a steel plate (9). The steel plate (9) has expansion bolt holes (7) and is fixed to the silo wall (2) by expansion bolts.

4. The silo liftable annular slide platform according to claim 1, characterized in that: The construction platform (5) is surrounded by a protective fence (10). The adjacent protective fences (10) of two adjacent construction platforms (5) are provided with openable and closable connecting doors (6) so that operators can bypass the steel structure frame (3) and pass continuously on the ring platform.

5. The silo liftable annular slide platform according to claim 1, characterized in that: The steel frame (3) includes at least two columns equipped with racks. The drive system includes a motor (13), a gear drive group (11) driven by the motor (13), and a fall arrestor. The output end of the motor (13) is connected to the column through a gear rack pair. The gear rack pair can operably drive the construction platform (5) to climb or descend along the column.

6. The silo liftable annular slide platform according to claim 5, characterized in that: The drive system is communicatively connected to the control system, which includes an electrical controller and a built-in synchronizer that enables the linkage lifting of multiple construction platforms (5).

7. The silo liftable annular slide platform according to claim 6, characterized in that: The electrical controller is located inside the electrical control box (12), and the electrical control box (12) is fixedly installed in the middle of the construction platform (5).

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