Open conveyor corridor online closure retrofit structure

Abstract

The utility model relates to an online closed reconstruction structure of open conveyor corridor, including existing corridor structure and new construction closed structure, existing corridor structure includes the column that arranges at intervals along the direction of transportation, the column crossbeam of connecting column, the longitudinal beam of arranging in the both sides of column crossbeam, place the concrete slab in the longitudinal beam top and install the belt conveyor in the concrete slab top, new construction closed structure includes with the column connection horizontal support part, install the closed frame in horizontal support part top, connect the secondary connecting beam of closed frame, the closed connecting plate of connecting closed frame and concrete slab, the color plate of covering closed frame and set up between the column and horizontal support part's reinforcing inclined support. The structure makes full use of existing column, need not to add the foundation, realizes steady connection with hollow light horizontal support part, and closed frame adopts light steel type modularization design, and the on -line segmented installation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, specifically relating to an online enclosed modification structure for open conveyor corridors in industries such as metallurgy, ports, and coal, and is particularly suitable for the modification of existing open corridor structures to achieve environmentally friendly, safe, and efficient enclosure. Background Technology

[0002] In modern industrial production, especially in heavy industries such as metallurgy, ports, and coal mining, belt conveyors are widely used as the primary equipment for transporting bulk materials in continuous transport. Open conveyor corridors are a common structural form, originally designed for ease of installation, maintenance, and operation. However, with increasingly stringent environmental standards and heightened awareness of safety, this open structure has exposed numerous problems. First, during conveyor operation, due to high belt speeds and external wind forces, dust from the materials easily disperses into the atmosphere, causing severe air pollution. This not only violates national environmental regulations but also poses a potential threat to the health of nearby residents. For example, in coal transportation, the diffusion of coal dust can lead to occupational diseases such as pneumoconiosis and exacerbate smog formation. Second, open corridors lack protective measures, increasing the risk of accidents involving people or objects falling from heights. Without adequate protection, workers maintaining equipment are at risk of injury or death. Furthermore, long-term exposure to wind, sun, and rain accelerates corrosion and aging, shortening the service life of the conveyor and its supporting structures. Components such as concrete slabs and steel beams are prone to rusting or cracking in humid environments, which leads to decreased structural stability, requires frequent maintenance, and further increases operating costs.

[0003] In existing technologies, the enclosure renovation of open corridors typically involves constructing new steel structure enclosures. This method involves adding independent foundations and supports to form a separate enclosed system. While it can achieve a certain degree of enclosure, it has significant drawbacks. First, the new foundations and supports require additional space, and existing corridors are often surrounded by dense facilities and limited space, such as adjacent to other conveyor lines, warehouses, or roads, which greatly increases the difficulty of construction. During construction, it may be necessary to temporarily dismantle or adjust surrounding facilities, affecting the continuity of normal production. Second, the construction cost is too high. Constructing new enclosures involves a large input of steel, concrete, and labor, especially when working at heights, requiring specialized hoisting equipment and safety measures, often resulting in costs exceeding expectations. Furthermore, the enclosure efficiency is low. Since the renovation must be carried out outside the existing structure, the construction period is long, and it may require downtime for renovation, causing production interruptions and economic losses. More importantly, this method causes significant interference with the existing structure, possibly requiring drilling or cutting of existing columns, weakening their load-bearing capacity, and posing high potential risks. In some complex environments, such as ports, docks, or metallurgical plants, the external spatial relationships are intricate, and new structures may conflict with existing pipelines or equipment, further amplifying the problems.

[0004] To address these shortcomings, some improvement solutions have been proposed, such as using modular enclosure panels to directly cover existing corridors. However, these solutions often neglect structural stability requirements, resulting in insufficient overall rigidity after enclosure and susceptibility to deformation under wind loads or vibrations. Furthermore, while some solutions consider connections to existing columns, the connection methods are simple, such as using only bolts for fixing, which cannot effectively transfer loads and are prone to loosening or failure after long-term use. More advanced solutions involve lightweight steel frames, but still require additional auxiliary columns, failing to achieve truly "online" modification—that is, completing the enclosure without interrupting conveyor operation. Overall, existing enclosure modification technologies have shortcomings in terms of economy, practicality, and safety, failing to meet the demands of modern industry for efficient and environmentally friendly renovations. Utility Model Content

[0005] In view of this, the purpose of this utility model is to solve the problems of construction difficulties, high costs, low efficiency, and significant interference with the original structure in the existing open conveyor corridor enclosure renovation. This utility model provides an online enclosure renovation structure for open conveyor corridors. This structure utilizes existing columns as a supporting foundation and achieves a stable connection of the newly constructed enclosure structure through lateral support components, realizing efficient and economical online enclosure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An online enclosure renovation structure for an open conveyor corridor includes an existing corridor structure and a newly constructed enclosure structure. The existing corridor structure includes columns spaced apart along the conveying direction, column beams connecting the columns, longitudinal beams arranged on both sides of the column beams, a concrete slab placed above the longitudinal beams, and a belt conveyor installed above the concrete slab. The newly constructed enclosure structure includes transverse support components connected to the columns, an enclosure frame installed above the transverse support components, secondary connecting beams connecting the enclosure frame, an enclosure connecting plate connecting the enclosure frame and the concrete slab, a color-coated sheet covering the enclosure frame, and reinforcing diagonal braces disposed between the columns and the transverse support components. The transverse support components include a pair of channel steels, a stabilizing structural member, a reinforcing structural member, and a support structural member. The stabilizing structural member fixes the channel steels to the columns, the reinforcing structural member is spaced apart between the channel steels to enhance rigidity, and the support structural member is disposed at the end of the channel steel to support the enclosure frame.

[0008] Furthermore, the column beams are located between adjacent columns to form a portal frame structure, and the longitudinal beams are arranged along the entire length to support the concrete slab, ensuring the stable operation of the belt conveyor.

[0009] Furthermore, the lateral support component is a hollow lightweight structure, the pair of channel steels are arranged in a continuous back-to-back manner, clamping the outer side of the column between the back sides of the channel steels, and the stabilizing structural member is set at the connection between the channel steel and the column.

[0010] Furthermore, the stabilizing structural component includes multiple through-ribs and an inlaid steel plate. The through-ribs pass through the column and are fixedly connected to the internal reinforcing bars of the column. A groove is pre-reserved on the surface of the column. The inlaid steel plate is embedded in the groove and welded to the through-rib. A corresponding hole is opened on the back of the channel steel to pass through the through-rib and is welded to it. The length of the through-rib is sufficient to completely penetrate the channel steel, the inlaid steel plate, and the column to ensure the firmness of the connection. The shape of the groove matches the inlaid steel plate to ensure that the surface is flush after embedding and to reduce stress concentration.

[0011] Furthermore, the reinforcing structural member includes at least three vertical steel plates and two horizontal steel plates. The central vertical steel plate is connected to the back of the channel steel, and the two side vertical steel plates are disposed at the groove opening of the channel steel. The vertical steel plates are aligned on a plane, and the horizontal steel plates are respectively connected to the upper and lower surfaces of the channel steel and welded to the vertical steel plates to enhance the overall rigidity of the transverse support component.

[0012] Furthermore, the support structure includes multiple central vertical steel plates, side vertical steel plates, and large horizontal steel plates. Each group of central vertical steel plates and side vertical steel plates are arranged in conjunction between the channel steel. The large horizontal steel plate connects the upper and lower surfaces of the channel steel and is welded to the vertical steel plates to form multiple arrangements to strengthen the end support. The multiple arrangements of vertical steel plates in the support structure form a grid-like reinforcement structure to improve the torsional resistance of the closed frame.

[0013] Furthermore, the secondary connecting beams are installed between the vertical frame columns of the closed frame, and the top surface of at least one pair of the secondary connecting beams is flush with the top surface of the concrete slab. The closed connecting plate overlaps and is fixed above the secondary connecting beams and the concrete slab. The closed connecting plate is made of flexible or rigid material and is fixed to the secondary connecting beams and the concrete slab by welding or bolts to form a waterproof and sealed connection.

[0014] Furthermore, the enclosed frame is a light steel structure, including vertical frame columns and horizontal frame columns. The vertical frame columns are installed on the support structure, and the horizontal frame columns are connected to the top of the vertical frame columns to reduce the load impact on the existing corridor structure.

[0015] Furthermore, the colored steel panels cover the top and sides of the enclosed frame, forming a sealed space to prevent dust escape and external environmental corrosion. Furthermore, the newly constructed enclosed structure adopts a modular structure, facilitating segmented installation and disassembly, and adapting to existing corridor structures of varying lengths.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model's open conveyor corridor online enclosure retrofit structure achieves reliable installation of the enclosed frame without damaging the existing corridor structure. This is achieved through innovative lateral support components and a stable connection with existing columns, eliminating the need for additional independent foundations or auxiliary columns. This significantly reduces interference with surrounding facilities, optimizes space utilization, and substantially lowers retrofit investment costs. The structure's lightweight design effectively reduces the additional load on existing columns, avoiding structural weakening issues common in traditional methods and ensuring overall stability and durability. Simultaneously, the use of perforated lateral support components and a modular enclosed frame improves construction efficiency, allowing for online retrofitting while the conveyor is running normally, minimizing production interruptions. This makes it suitable for confined industrial environments such as ports or metallurgical plants. Furthermore, the sealed color-coated steel sheet effectively prevents dust escape, meeting stringent environmental standards and reducing air pollution and occupational health risks. The selective setting of reinforced diagonal braces further enhances the structure's adaptability, allowing for flexible adjustments based on different column heights and strengths, improving wind and vibration resistance, and extending equipment lifespan. Overall, the structure not only improves production safety and prevents falls from heights, but also enhances aesthetics and meets the needs of multiple industries for efficient and enclosed retrofitting.

[0018] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a cross-sectional view of the existing corridor structure.

[0021] Figure 2 This is a side view of the existing corridor structure.

[0022] Figure 3 This is a closed cross-sectional view of the corridor in this utility model.

[0023] Figure 4 This is a side view of the enclosed corridor in this utility model.

[0024] Figure 5 This is a plan view of the enclosed corridor in this utility model.

[0025] Figure 6 This is a diagram of the transverse support component for the corridor enclosure of this utility model.

[0026] Figure 7 This is a schematic diagram of the stabilizing and enclosing structure for the passageway of this utility model.

[0027] Figure 8 This is a schematic diagram of the corridor enclosure reinforcement structure of this utility model.

[0028] Figure 9 This is a schematic diagram of the support structure for the closed corridor of this utility model.

[0029] Figure 10 This is a schematic diagram of the corridor enclosure column modification of this utility model.

[0030] Reference numerals: 1-Existing conveyor; 2-Concrete slab; 3-Longitudinal beam; 4-Column beam; 5-Column; 51A-Left groove; 51B-Right groove; 6-Transverse support component; 61A-Left channel steel; 61B-Right channel steel; 62A-Left embedded steel plate; 62B-Right embedded steel plate; 63A-Through reinforcement; 63B-Opening; 64A-Upper horizontal steel plate (small); 64B-Lower horizontal steel plate (small); 65A-Middle vertical steel plate; 65B-Left vertical steel plate; 65C-Right vertical steel plate; 66A-Upper horizontal steel plate (large); 66B-Lower horizontal steel plate (large); 67-Reinforcing diagonal brace; 7-Closed frame; 71-Vertical frame column; 72-Transverse frame column; 8-Color plate; 91-Secondary connecting beam; 92-Closed connecting plate; I-Stabilizing structural component; II-Reinforcing structural component; III-Support structural component. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] like Figures 1 to 10 As shown, an online enclosure renovation structure for an open conveyor corridor includes an existing corridor structure and a newly constructed enclosure structure. The existing corridor structure includes columns 5 spaced apart along the conveying direction, column beams 4 connecting the columns 5, longitudinal beams 3 arranged on both sides of the column beams 4, a concrete slab 2 placed above the longitudinal beams 3, and a belt conveyor 1 installed above the concrete slab 2. The column beams 4 are located between adjacent columns 5, forming a portal frame structure. The longitudinal beams 3 are arranged along the entire length to support the concrete slab 2, ensuring the stable operation of the belt conveyor 1. The newly constructed enclosure structure includes transverse support components 6 connected to the columns 5, an enclosure frame 7 installed above the transverse support components 6, secondary connecting beams 91 connecting the enclosure frame 7, an enclosure connecting plate 92 connecting the enclosure frame 7 and the concrete slab 2, a color-coated sheet 8 covering the enclosure frame 7, and reinforcing diagonal braces 67 installed between the columns 5 and the transverse support components 6. The transverse support component 6 includes a pair of channel steels (left channel steel 61A and right channel steel 61B), a stabilizing structural component I, a reinforcing structural component II, and a support structural component III. The stabilizing structural component I fixes the channel steel to the column 5. The reinforcing structural component II is spaced between the channel steels to enhance rigidity. The support structural component III is located at the end of the channel steel to support the closed frame 7.

[0035] The newly constructed enclosed structure adopts a modular design, facilitating segmented installation and disassembly, and adapting to existing corridor structures of varying lengths. The existing corridor is open, with columns 5 spaced along the conveying direction on both sides of the belt conveyor 1. Column beams 4 are located above columns 5 and connected to them as a whole. Longitudinal beams 3 run along both sides of the column beams 4. Concrete slabs 2 are placed above the longitudinal beams 3, and the belt conveyor 1 is installed above the concrete slabs 2. Transverse support components 6 are connected to the columns 5, and the enclosed frame 7 is located above the transverse support components 6. Secondary connecting beams 91 connect the vertical frame columns 71 to form a stable whole between the enclosed frame 7 and the transverse support components 6. The enclosed frame 7 is covered with colored steel plates 8 on the top and sides to create a sealed space, preventing dust escape and external environmental erosion. The enclosed frame 7 is connected to the concrete slab 2 by enclosed connecting plates 92. Reinforcing diagonal braces 67 are installed between the columns 5 and the transverse support components 6 to enhance the overall structural safety. The closed frame 7 is a light steel structure, including vertical frame columns 71 and horizontal frame columns 72. The vertical frame columns 71 are installed on the support structure III, and the horizontal frame columns 72 are connected to the top of the vertical frame columns 71 to reduce the load impact on the existing corridor structure.

[0036] The specific construction process of the online enclosed transformation structure of the open conveyor corridor in this embodiment is as follows:

[0037] Step 1: Modify the mounting surface of the existing corridor structure's column 5 by chiseling away part of the concrete on the mounting surface and installing multiple through-bars 63A. The through-bars 63A completely pass through the column 5 and are tied and welded to the internal steel bars of the column 5. The length of the through-bars 63A is sufficient to completely pass through the subsequent channel steel, inlaid steel plate and column 5 to ensure the firmness of the connection. Then, restore the chiseled part and reserve grooves 51A / 51B. The shape of the grooves 51A / 51B matches the subsequent inlaid steel plate to ensure that the surface is flush after embedding and reduce stress concentration.

[0038] Step 2: Drill holes 63B in the left-side embedded steel plate 62A and the right-side embedded steel plate 62B of the stabilizing structural component I, and pass through the through rib 63A respectively. The left-side embedded steel plate 62A is embedded in the left groove 51A reserved in the column 5, and the right-side embedded steel plate 62B is embedded in the right groove 51B reserved in the column 5, ensuring that the surface of the steel plate is flush with the surface of the column 5. Then weld the left-side embedded steel plate 62A / right-side embedded steel plate 62B to the through rib 63A to complete the fixed connection between the stabilizing structural component I and the column 5.

[0039] Step 3: The left channel steel 61A and right channel steel 61B of the transverse support component 6 are hollow lightweight structures, arranged in a continuous back-to-back manner. Corresponding holes 63B are opened on the back of the channel steel, and the through ribs 63A are passed through them respectively. The outer side of the column 5 is clamped between the back of the left channel steel 61A and the right channel steel 61B. The left channel steel 61A is welded to the left embedded steel plate 62A, and the right channel steel 61B is welded to the right embedded steel plate 62B. The left channel steel 61A / right channel steel 61B is then welded to the through ribs 63A, completing the installation of the stabilizing structural component I with the left channel steel 61A / right channel steel 61B, forming the overall frame of the transverse support component 6.

[0040] Step four: Reinforce the transverse support component 6 using reinforcing structural component II. Reinforcing structural component II is spaced between the left channel steel 61A and the right channel steel 61B, and includes at least three vertical steel plates (middle vertical steel plate 65A, left vertical steel plate 65B, and right vertical steel plate 65C) and two horizontal steel plates (small) 64A / 64B. First, install the middle vertical steel plate 65A between the back surfaces of the left channel steel 61A and the right channel steel 61B, ensuring it is flush with the channel steel surfaces. Complete the welding of the middle vertical steel plate 65A to the surfaces of the left channel steel 61A / right channel steel 61B. Then, place the left vertical steel plate 65B and the right vertical steel plate 65C at the groove openings of the left channel steel 61A / right channel steel 61B, ensuring... The central vertical steel plate 65A, the left vertical steel plate 65B, and the right vertical steel plate 65C are aligned on a plane. The left vertical steel plate 65B / right vertical steel plate 65C are welded to the groove of the left channel steel 61A / right channel steel 61B. Then, upper horizontal steel plate (small) 64A and lower horizontal steel plate (small) 64B are set on the top and bottom of the left channel steel 61A / right channel steel 61B. The upper horizontal steel plate (small) 64A and lower horizontal steel plate (small) 64B connect the upper and lower surfaces of the left channel steel 61A and right channel steel 61B respectively, and are welded to the central vertical steel plate 65A to form a whole, thereby enhancing the overall rigidity of the transverse support component 6. The above steps are repeated to complete the interval arrangement of the reinforcing structural component II.

[0041] Step 5: The support structure III is installed at both ends of the transverse support component 6, including multiple central vertical steel plates 65A, side vertical steel plates 65B / 65C, and large horizontal steel plates 66A / 66B. Each set of central vertical steel plates 65A and side vertical steel plates 65B / 65C is arranged between the left channel steel 61A / right channel steel 61B. Each end support structure III has three pairs of central vertical steel plates 65A and side vertical steel plates 65B / 65C. The components are arranged in a combination, and are installed at intervals at the ends of the transverse support components 6. Each pair of central vertical steel plates 65A is installed between the back surfaces of the left channel steel 61A and the right channel steel 61B, ensuring that they are flush with the surfaces of the left channel steel 61A / right channel steel 61B. The central vertical steel plates 65A are then welded to the surfaces of the left channel steel 61A / right channel steel 61B. Finally, the mating left vertical steel plates 65B and right vertical steel plates 65C are placed on the left channel steel 61A. At the groove of the right channel steel 61B, ensure that the left vertical steel plate 65B / right vertical steel plate 65C that cooperates with the middle vertical steel plate 65A are aligned on the same plane, and complete the welding of the left vertical steel plate 65B / right vertical steel plate 65C with the groove of the left channel steel 61A / right channel steel 61B. Then, set the upper horizontal steel plate (large) 66A and the lower horizontal steel plate (large) 66B on the top and bottom of the left channel steel 61A / right channel steel 61B. The upper horizontal steel plate (large) 66A and the lower horizontal steel plate (large) 66B connect the upper and lower surfaces of the left channel steel 61A and the right channel steel 61B respectively, and weld them with the three pairs of middle vertical steel plates 65A / left vertical steel plate 65B / right vertical steel plate 65C to form a whole. The arrangement of multiple sets of vertical steel plates forms a grid-like reinforcement structure, thereby strengthening the end support and improving the torsional resistance of the closed frame 7, and completing the installation of the two end support structure components III.

[0042] Step six: The closed frame 7 is a light steel structure. Its vertical frame columns 71 are respectively installed at the ends of the support structure III of the horizontal support component 6, and the horizontal frame columns 72 are installed on the top of the two vertical frame columns 71, forming a stable whole to reduce the load impact on the existing corridor structure.

[0043] Step 7: The vertical frame columns 71 are connected together by secondary connecting beams 91. The top surface of at least one pair of secondary connecting beams 91 is flush with the top surface of the concrete slab 2. The closed connecting plate 92 is made of flexible or rigid material, overlaps and is fixed above the flush top surface of the secondary connecting beams 91 and the concrete slab 2, and is fixed to the secondary connecting beams 91 and the concrete slab 2 by welding or bolts to form a waterproof and sealed connection.

[0044] Step 8: Utilizing the modular design of the newly constructed enclosed structure, repeat the above steps to complete the installation of all horizontal support components 6 and columns 5, the installation of enclosed frames 7 and horizontal support components 6, and the connection between each section of enclosed frames 7, adapting to existing corridor structures of different lengths and ensuring the integrity and stability of the overall structure.

[0045] Step nine: Based on the actual height and structural strength of the column 5, selectively install reinforcing diagonal braces 67 between the column 5 and the transverse support component 6 to further enhance overall stability.

[0046] Step 10: After all structural forms are completed, cover the top and sides of the closed frame 7 with the color plate 8 to form a sealed space, preventing dust from escaping and external environmental erosion, thus completing the closure of the existing open corridor.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An online enclosed retrofit structure for an open conveyor corridor, characterized in that, This includes existing corridor structures and newly constructed enclosed structures; The existing corridor structure includes columns spaced apart along the conveying direction, column beams connecting the columns, longitudinal beams arranged on both sides of the column beams, a concrete slab placed above the longitudinal beams, and a belt conveyor installed above the concrete slab. The newly constructed enclosed structure includes a transverse support component connected to the column, an enclosed frame installed above the transverse support component, a secondary connecting beam connecting the enclosed frame, an enclosed connecting plate connecting the enclosed frame and the concrete slab, a color plate covering the enclosed frame, and reinforcing diagonal bracing disposed between the column and the transverse support component. The lateral support component includes a pair of channel steels, a stabilizing structural member, a reinforcing structural member, and a support structural member. The stabilizing structural member fixes the channel steels to the column. The reinforcing structural members are spaced apart between the channel steels to enhance rigidity. The support structural member is located at the end of the channel steels to support the closed frame.

2. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The column beams are located between adjacent columns, forming a portal frame structure. The longitudinal beams are arranged along the entire length to support the concrete slab and ensure the stable operation of the belt conveyor.

3. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The transverse support component is a hollow lightweight structure. The pair of channel steels are arranged in a continuous back-to-back manner, clamping the outer side of the column between the back sides of the channel steels. The stabilizing structural component is set at the connection between the channel steel and the column.

4. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The stabilizing structural component includes multiple through-ribs and an inlaid steel plate. The through-ribs pass through the column and are fixedly connected to the internal reinforcing bars of the column. A groove is pre-drilled on the surface of the column. The inlaid steel plate is embedded in the groove and welded to the through-rib. A corresponding hole is opened on the back of the channel steel to pass through the through-rib and is welded to it. The length of the through-rib is sufficient to completely penetrate the channel steel, the inlaid steel plate, and the column to ensure the firmness of the connection. The shape of the groove matches the inlaid steel plate to ensure that the surface is flush after embedding and to reduce stress concentration.

5. The online enclosed modification structure for an open conveyor corridor according to claim 1, characterized in that, The reinforcing structural member includes at least three vertical steel plates and two horizontal steel plates. The central vertical steel plate is connected to the back of the channel steel, and the two side vertical steel plates are arranged at the groove opening of the channel steel. The vertical steel plates are aligned on a plane, and the horizontal steel plates are respectively connected to the upper and lower surfaces of the channel steel and welded to the vertical steel plates to enhance the overall rigidity of the transverse support component.

6. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The support structure includes multiple central vertical steel plates, side vertical steel plates, and large horizontal steel plates. Each group of central vertical steel plates and side vertical steel plates are arranged in conjunction between the channel steel. The large horizontal steel plate connects the upper and lower surfaces of the channel steel and is welded to the vertical steel plates to form multiple arrangements to strengthen the end support. The multiple arrangements of vertical steel plates in the support structure form a grid-like reinforcement structure to improve the torsional resistance of the closed frame.

7. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The secondary connecting beams are installed between the vertical frame columns of the closed frame. The top surface of at least one pair of the secondary connecting beams is flush with the top surface of the concrete slab. The closed connecting plate overlaps and is fixed above the secondary connecting beams and the concrete slab. The closed connecting plate is made of flexible or rigid material and is fixed to the secondary connecting beams and the concrete slab by welding or bolts to form a waterproof and sealed connection.

8. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The enclosed frame is a light steel structure, including vertical frame columns and horizontal frame columns. The vertical frame columns are installed on the support structure, and the horizontal frame columns are connected to the top of the vertical frame columns to reduce the load impact on the existing corridor structure.

9. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The colored sheet covers the top and sides of the enclosed frame, forming a sealed space to prevent dust from escaping and external environmental erosion.

10. The open conveyor corridor online enclosure modification structure according to claim 1, characterized in that, The newly constructed enclosed structure adopts a modular structure, which facilitates segmented installation and disassembly and can adapt to existing corridor structures of different lengths.

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