A method of supporting a belt conveyor

Abstract

The present application relates to the field of conveying machinery, in particular to a supporting method of belt conveyor, the continuous suspension structure supporting system with the passage of belt conveyor is formed by several suspension structures, the single suspension structure is connected flexibly as a whole by using continuous multi-span suspension structure, the frame is used for supporting the belt conveyor by using the frame section of movable connection, and the hinge structure between the support and the foundation is matched, and the supporting is especially suitable for the foundation with the settlement area, when the supporting structure of the conveying belt is changed due to the stress change of foundation settlement, the strong self-adjusting ability is achieved, and the new balance is reached again.

Description

Technical Field

[0001] This invention relates to the field of conveying machinery and equipment, and more particularly to a support method for belt conveyors. Background Technology

[0002] In the mining industry, belt conveyors are the ideal, efficient, and continuous transportation equipment. Compared with other transportation equipment, they have advantages such as long conveying distance, large capacity, and continuous conveying. They are also reliable in operation and easy to automate and centrally control. In industries such as metallurgy, building materials, and power, belt conveyors also offer advantages such as large conveying capacity, simple structure, convenient maintenance, low cost, and strong versatility. They can be applied to industries such as metallurgy, coal, transportation, power, building materials, chemicals, grain, and machinery to transport various bulk materials. With increasing resource demand, the distance between mining areas and processing areas is gradually increasing. Long-distance conveyor belts are gradually taking a dominant position in the market. However, with the intensification of mining, especially in some large mining areas, after the initial mining is completed, uneven surface subsidence occurs due to changes in geological conditions, resulting in subsidence areas. This is not conducive to the later mining. Subsidence areas are often designated as abandoned areas. Using motor vehicles for transportation also requires geological analysis and route planning to avoid subsidence areas. This often results in a significant increase in transportation distance, transportation costs, and vehicle damage costs. Moreover, traditional steel-supported truss conveyor belts cannot be adapted to laying in such areas prone to surface subsidence and cannot achieve transportation. Therefore, there is an urgent need for a new type of conveyor support method to achieve operation. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a belt conveyor support method, which comprises a continuous suspension structure support system with a belt conveyor channel formed above the area requiring support by several suspension structures, thereby completing the operational support of the belt conveyor.

[0004] Furthermore, the suspension structure includes a foundation, a main rope tensioned by ground anchors at both ends of the area requiring support, a support frame on the foundation for supporting the main rope, a frame structure for installing and operating the belt conveyor, and suspenders fixed to the main rope for suspending the frame.

[0005] Furthermore, the continuous suspension structure support system also has a fixing structure, which consists of multiple ground anchors arranged along the line.

[0006] Furthermore, the system is also equipped with a buffer device, which includes a control component, hydraulic cylinders respectively located at both ends of the main rope, and a distance measuring sensor for detecting the extension distance of the cylinder piston rod.

[0007] Furthermore, the belt conveyor support method comprises the following steps: S1: Based on the geological survey report of the area to be supported, select the fixed points for the installation foundation and drive piles to install the foundation; S2: Install the support frame onto the foundation; S3: Install the main rope and fix it to the support frame after reaching the preset sag; S4: Install buffer devices at both ends of the main suspension cable and install ground anchors; S5: Install the hangers and suspend the frame structure using the hangers; S6: Conduct a safety inspection and adjust the hangers to adapt to the stability of the entire support system.

[0008] Furthermore, in S2, the bracket is installed on the foundation. The bottom of the bracket is hinged to the foundation via a hinge seat. The hinge seat is installed on the foundation and temporarily locked with a pin to prevent the hinge seat from rotating.

[0009] Furthermore, a safety check is performed in S6, and the boom is adjusted to suit the stability of the entire support system, including removing the pins used to temporarily fix the hinge to ensure that the hinge can rotate and adjust during system operation.

[0010] Furthermore, the hinge is configured with two upper and lower ends having trapezoidal or semi-circular cross-sections, which are hinged together. When the system is running, the upper and lower ends swing left and right about the hinge point.

[0011] Furthermore, in S3, a fixing seat is provided at the top of the support, and a groove is provided at the top of the fixing seat. The inner surface of the groove is smooth and is used to place the main rope. There are mounting holes for installing buckles on both sides of the groove. The buckles can clamp the main rope. The lower part of the fixing seat is fixedly connected to the top of the support.

[0012] Furthermore, the frame structure in S5 includes several interconnected frame segments, with each pair of adjacent frame segments being movably connected by a connector, and a track for a belt conveyor is provided within the frame.

[0013] This invention employs a continuous multi-span suspension structure, which flexibly connects individual suspension structures into a single unit. A frame composed of movable frame segments supports the belt conveyor. Combined with the hinged structure between the support and the foundation, it effectively buffers structural instability caused by surface subsidence in areas prone to such events. It exhibits strong self-adjustment capabilities to changes in the stress on the conveyor belt support structure caused by surface subsidence, achieving a new equilibrium. This demonstrates strong adaptability and significant potential for widespread application. Attached Figure Description

[0014] The above and other objects and advantages of the present invention will become more fully clear from the following detailed description taken in conjunction with the accompanying drawings, wherein the same or similar elements are indicated by the same reference numerals. Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 yes Figure 1 Schematic diagram of the cable-stayed structure section at point AA.

[0016] Figure 3 This is a schematic diagram showing the frame segments connected by connectors.

[0017] Figure 4 This is a schematic diagram of the main structure of the fixed base in this invention.

[0018] Figure 5 This is a schematic diagram of the fixed mount from the left.

[0019] Figure 6 This is a structural schematic diagram of the first embodiment of the hinge.

[0020] Figure 7 This is a structural schematic diagram of the second embodiment of the hinge.

[0021] Figure 8 yes Figure 1 A comparative diagram showing the foundation before and after settlement.

[0022] Labeling explanation: 1-Foundation, 2-Main rope, 3-Hanging rod, 4-Frame section, 5-Bracket, 6-Hinge, 7-Connector, 8-Fixed seat, 9-Ground anchor, 10-Snap fastener, 11-Protective cover, 13-Buffer device. Implementation

[0023] The present invention will be further described in detail below with reference to embodiments. The advantages and features of the present invention will become clearer as the description unfolds. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions to the details and form of the technical solutions of the present invention can be made without departing from the spirit and scope of the invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0024] like Figure 1 and Figure 2 As shown, this invention provides a belt conveyor support method, comprising a multi-segment continuous suspension structure positioned above the area requiring support. Both ends of this multi-segment continuous structure are fixed to a stable ground surface extending beyond the area requiring support using ground anchors 9. The use of a continuous multi-span suspension structure allows for the flexible connection of individual suspension structures into a single unit. In areas prone to ground subsidence, it effectively buffers structural instability caused by foundation settlement. It exhibits strong self-adjustment capabilities to changes in the stress on the conveyor belt support structure caused by ground subsidence, achieving a new equilibrium. This demonstrates strong adaptability and significant potential for widespread application.

[0025] like Figure 1 and Figure 2As shown, the suspension structure includes a foundation 1, a main rope 2 tensioned by ground anchors 9 at both ends of the area requiring support, a support frame 5 mounted on the foundation 1 to support the main rope 2, a frame structure for installing and operating the belt conveyor, and suspenders 3 suspended and fixed to the main rope 2 for hanging the frame. In this embodiment, the number of continuous segments of the suspension structure can be specifically designed according to the extent of the area requiring support. Figure 1 As shown, the system is also equipped with a buffer device 13, which includes a control component, hydraulic cylinders respectively installed at both ends of the main rope 2, and a distance measuring sensor for detecting the extension distance of the cylinder piston rod.

[0026] In this embodiment, a belt conveyor support method is provided, comprising the following steps: S1: Based on the geological survey report of the area to be supported, select the fixed points for installing the foundation 1, and drive piles to install the foundation 1; S2: Install the support 5 onto the foundation 1, wherein the bottom of the support 5 is hinged to the foundation 1 via a hinge seat 6, the hinge seat 6 is installed onto the foundation 1, and the hinge seat 6 is temporarily locked with a pin to prevent rotation; S3: Install the main rope 2, and after reaching the preset sag, fix the main rope 2 to the support 5, wherein the top of the support 5 is provided with a fixing seat 8, such as... Figure 4 and Figure 5 As shown, the top of the fixed seat 8 is provided with a groove, the inner surface of which is smooth, for placing the main rope 2. The sides of the groove are provided with mounting holes for installing buckles 10, which can clamp the main rope 2. The lower part of the fixed seat 8 is fixedly connected to the top of the support 5. S4: Install buffer devices 13 at both ends of the main suspension cable and install ground anchors 9. S5: Install the suspender rod 3 and suspend the frame structure using the suspender rod 3. S6: Conduct a safety inspection and adjust the suspender rod 3 to adapt to the stability of the entire support system, including removing the pins used for temporarily fixing the hinge seat to ensure that the hinge seat can rotate and adjust during system operation.

[0027] like Figure 6 As shown, the bottom of the support 5 is hinged to the foundation 1 via a hinge seat 6, allowing the support 5 to swing left and right along the belt conveyor within a limited range. In one embodiment, the hinge seat 6 is configured as two components with trapezoidal cross-sections hinged vertically. When surface subsidence occurs, the instability of the surface will cause the support 5 to sway left and right with the subsidence of the foundation 1. Therefore, the support 5 is designed to sway left and right as shown in the diagram. Figure 6 The two components with trapezoidal cross sections shown are hinged vertically, which is beneficial for adjusting the balance of the system by swinging left and right under the support of the trapezoidal cross sections during the swinging process of the support 5, while also having a certain degree of constraint on the swing amplitude, thus ensuring the stable support of the support 5.

[0028] Similarly, Figure 7As shown, in the second embodiment, the hinge is set as two components with arc-shaped cross sections that are hinged together vertically. This is beneficial because the support of the bracket 5 can swing left and right to adjust the balance of the system under the support of the trapezoidal cross section during the swinging process, and can also have a certain degree of constraint on the swinging amplitude to ensure the stable support of the bracket 5.

[0029] The frame structure in S5 described above includes several interconnected frame segments 4, with each pair of adjacent frame segments 4 movably connected by a connector 7. A track for a belt conveyor is provided within the frame. Figure 3 Each frame segment 4 has a connector 7 at each of its four corners at the front and rear ends for connecting the two frame segments 4. This allows the frame to rotate and adjust in time when ground subsidence occurs during the operation of the belt conveyor, ensuring the stability of the belt conveyor.

[0030] A fixing seat 8 is provided at the top of the aforementioned bracket 5, such as... Figure 4 and Figure 5 As shown, the top of the fixed base 8 is provided with a groove, the inner surface of which is smooth, for placing the main rope 2. Mounting holes for installing buckles are provided on both sides of the groove. After the buckles are secured to the main rope, the protective cover 11 is installed. The buckles 10 can secure the main rope 2, which helps maintain the stability of each suspension cable segment during ground subsidence, preventing excessive displacement and overall system instability. The lower part of the fixed base 8 is fixedly connected to the top of the support 5, allowing the fixed base 8 to sway with the support 5, ensuring the flexibility of the overall system.

[0031] In this embodiment, the system also includes a buffer device 13, which is a hydraulic automatic adjustment device. Hydraulic cylinders are installed at both ends of the main rope 2. When a partial collapse occurs, the main rope 2 is displaced in the direction of the collapse, causing the main rope 2 to pull the hydraulic cylinders outward. As the cylinder tension increases, a new equilibrium position is reached. The cylinder extension amount can be measured by a distance sensor. When the cylinder extension amount reaches the maximum set value, the distance sensor transmits a signal to the electronic control system and issues a maintenance signal. The buffering effect of this buffer device 13 can effectively eliminate strong mechanical impacts and extend the service life of the suspension structure.

[0032] The working principle of this invention is as follows: Figure 8The diagram shows a comparison of the support system in this invention before and after foundation settlement. The support system constructed using the support method of this invention allows the entire system structure to be interconnected and mutually constrained, providing operational assurance for the normal operation of belt conveyors in areas prone to surface settlement. When surface settlement occurs, the foundation where the support is located settles, and the support, along with the main cable, settles. Because the foundation is equipped with hinged seats with hinged upper and lower ends, the upper and lower ends swing left and right around the hinge point during system operation. During the swinging process, two hinged seats with trapezoidal or semi-circular cross-sections are used, one for the upper end and one for the lower end. The hinged connection of these upper and lower ends, supported by the trapezoidal or semi-circular cross-sections, allows for both left and right swinging to adjust the system's balance and provides a certain degree of constraint on the swing amplitude, ensuring stable support of the support. This ensures that the support can swing left and right in the direction of the belt conveyor. The entire system's constraint force along the belt conveyor direction relies on ground anchors. Under normal circumstances, the forces on both sides of the support remain balanced, maintaining vertical stability. When the force on one side changes, the main cable expands and contracts. This force is transmitted to the support through the fixed seat, causing the hinge to drive the support to sway left and right along the belt conveyor direction. This evenly distributes the expansion and contraction of the main cable at one point to the suspension structures on both sides, extending the force at a localized point symmetrically to both sides. The overall frame structure is divided into multiple frame segments, connected by connector pins. Each frame segment is an independent unit. When the main cable expands and contracts, the vertical distance of the frame segment's suspension rods changes. The connecting pins between the frame segments allow each segment to rotate in a plane, thus fundamentally achieving vertical changes in the frame structure and ensuring the stability of the entire system. Therefore, this invention is the first to adopt a continuous multi-span suspension structure, which can flexibly connect individual suspension structures into a whole. The frame is composed of movable frame segments to support the belt conveyor. With the hinged structure between the support and the foundation, it can effectively buffer the structural instability caused by ground settlement. It has a strong self-adjustment ability to the stress changes of the conveyor belt support structure caused by foundation settlement. The system can reach a new balance through self-adjustment, which has a strong adaptability and great significance for promotion.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] This invention designs a continuous multi-span suspension structure, with the overall system combining rigidity and flexibility. It overcomes the shortcomings of traditional steel-supported truss belt conveyors, which cannot be adapted to laying in areas where surface subsidence may occur. It is especially suitable for belt conveyors that use trailers to carry the conveyor belt, and therefore has significant application value.

[0035] The present invention designs a frame structure comprising several interconnected frame segments, with each adjacent frame segment being movably connected. This facilitates timely rotation and adjustment of the frame in the event of ground subsidence during the operation of the belt conveyor, thereby ensuring the operational stability of the belt conveyor.

[0036] The present invention is designed such that the bottom of the support is hinged to the foundation through a hinge seat, and the upper and lower ends with trapezoidal or semi-circular cross-sections are hinged together. This is beneficial for adjusting the balance of the system by swinging left and right under the support of the trapezoidal cross-section during the swinging process, while also having a certain degree of constraint on the swinging amplitude, thus ensuring the stable support of the support.

[0037] The present invention includes a hydraulically adjustable buffer device, which can effectively eliminate strong mechanical impacts and extend the service life of the suspension structure through its buffering effect.

[0038] The implementation schemes in the above embodiments can be further combined or replaced, and the embodiments are merely descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Various changes and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for supporting a belt conveyor, characterized in that: A continuous suspension cable support system, consisting of several cable-stayed structures forming a belt conveyor channel above the area requiring support, provides operational support for the belt conveyor. The continuous suspension cable support system includes a foundation, main ropes tensioned by ground anchors at both ends of the area requiring support, supports on the foundation for supporting the main ropes, a frame structure for installing and operating the belt conveyor, and suspenders fixed to the main ropes for suspending the frame structure. The continuous suspension cable support system also includes a fixing structure, consisting of multiple ground anchors arranged along the line. The continuous suspension cable support system also includes a buffer device, comprising control components, hydraulic cylinders at both ends of the main ropes, and a distance sensor for detecting the extension distance of the cylinder piston rods. The frame structure includes several interconnected frame segments, with each adjacent frame segment movably connected by a connector. A track for the belt conveyor is installed within the frame, and the belt conveyor is a trolley-mounted conveyor carrying the conveyor belt.

2. The belt conveyor support method according to claim 1, characterized in that: The steps are as follows: S1: Based on the geological survey report of the foundation settlement area, select the fixed points for installing the foundation and drive piles to install the foundation; S2: Install the support frame onto the foundation; S3: Install the main rope and fix it to the support frame after reaching the preset sag; S4: Install buffer devices at both ends of the main suspension cable and install ground anchors; S5: Install the hangers and suspend the frame structure with the hangers. S6: Conduct a safety inspection and adjust the suspenders to adapt to the stability of the entire continuous suspension structure support system.

3. The belt conveyor support method according to claim 2, characterized in that: In S2, the bracket is installed on the foundation. The bottom of the bracket is hinged to the foundation via a hinge seat. The hinge seat is installed on the foundation and temporarily locked with a pin to prevent the hinge seat from rotating.

4. The belt conveyor support method according to claim 3, characterized in that: In S6, a safety check is performed, and the suspenders are adjusted to suit the stability of the entire continuous cable-stayed structure support system. This includes removing the pins used to temporarily fix the hinges to ensure that the hinges can rotate and adjust during system operation.

5. The belt conveyor support method according to claim 4, characterized in that: The hinge is configured with two upper and lower ends with trapezoidal or semi-circular cross-sections, which are hinged together. When the system is running, the upper and lower ends swing left and right about the hinge point.

6. The belt conveyor support method according to claim 5, characterized in that: In S3, a fixing seat is provided at the top of the support. The top of the fixing seat is provided with a groove with a smooth inner surface for placing the main rope. The groove is provided with mounting holes on both sides for installing buckles. The buckles can clamp the main rope. The lower part of the fixing seat is fixedly connected to the top of the support.

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