Laying method of conveyor belt for long distance belt conveyor

Abstract

The present invention provides a method for laying a conveyor belt for a long-distance belt conveyor, including the steps of making a conveyor belt dragging chuck and a temporary fixer, calculating the torque required for dragging the conveyor belt and selecting a winch, determining the number of required tape rolls and setting up a tape roll bracket, setting up and preparing the winch for dragging, laying the conveyor belt, and looping and closing the conveyor belt. The present invention is a complete, detailed, specific, versatile and highly operable technical solution, according to which the laying of the conveyor belt for a long-distance belt conveyor can be completed quickly, efficiently and with high quality on the basis of ensuring safety, and the construction cost is low and the construction quality is good, which can not only ensure the rights and interests of the owner, but also the construction party can obtain better economic benefits, and can also achieve positive social benefits, and can effectively guide the laying operation of the conveyor belt for the same or similar long-distance belt conveyor, and has pioneering and guiding significance, and is of great value for promotion and application.

Description

Technical Field

[0001] The invention relates to a method for laying a conveying belt of a belt conveyor, in particular to a method for laying a conveying belt of a long-distance belt conveyor, and belongs to the technical field of material transportation equipment installation. Background Art

[0002] Belt conveyor is a friction-driven machine that transports materials in a continuous manner. It is mainly composed of a frame, conveyor belt, rollers, drums, tensioning devices, transmission devices, etc. It can form a material conveying channel from the initial feeding point to the final unloading point on a certain conveyor line. It can convey both bulk materials and pieced items. In addition to pure material transportation, it can also cooperate with the company's production process to form a rhythmic assembly line transportation line.

[0003] The conveying line of the belt conveyor is flexible and adaptable. The line length can be determined according to needs, which can be as short as a few meters or as long as several kilometers. It can be installed in a small tunnel or erected above areas with chaotic ground traffic and dangerous areas. Therefore, it is a material transportation equipment with extremely wide uses.

[0004] Usually, the conveyor belt of the belt conveyor runs on rollers together with the cargo. The conveyor belt is both a traction mechanism and a load-bearing mechanism, and there is no relative movement between the cargo and the conveyor belt.

[0005] For belt conveyors, generally, installation and commissioning of fixed equipment and facilities such as the frame are carried out first. After the frame and other equipment are installed and accepted, the conveyor belt is laid and looped.

[0006] The conveyor belt is the last step in the installation and commissioning of the belt conveyor. It is a very important link in completing the conveyor installation task on time. At the same time, the quality of the conveyor belt laying will directly affect the normal operation and service life of the belt conveyor, and is the key to ensuring production and the interests of the owner.

[0007] Generally, belt conveyors are relatively easy to lay due to their short conveyor belts. However, for long-distance belt conveyors, the conveyor belts used not only need to be very long, but also need to have good strength. Therefore, the conveyor belts on long-distance belt conveyors are not only long but also heavy, making them quite difficult to lay. In addition, it is necessary to ensure that the conveyor belts used over long distances do not cause quality problems such as deviation, making the laying difficulty quite enormous.

[0008] In the prior art, there are some guiding opinions and operating specifications for the laying methods of conveyor belts for conventional belt conveyors, but there is no instructive and inspiring literature and practical operating methods for the laying of conveyor belts for long-distance belt conveyors. Summary of the invention

[0009] In order to address the deficiencies of the prior art, an embodiment of the present invention provides a method for laying a conveyor belt for a long-distance belt conveyor, the purpose of which is to quickly, efficiently and with high quality complete the laying of the conveyor belt for the long-distance belt conveyor while ensuring safety, thereby ensuring that the installation of the long-distance belt conveyor is completed on time and the rights and interests of the owner are protected.

[0010] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0011] A method for laying a conveying belt of a long-distance belt conveyor, wherein the long-distance belt conveyor comprises at least one belt conveying segment, and each of the belt conveying segments comprises at least a respective frame and a respective conveying belt;

[0012] The frame includes a head frame for mounting a driving roller, a tail frame for mounting a redirecting roller, and an intermediate frame arranged between the driving roller and the redirecting roller;

[0013] The conveyor belt is tightly looped between the driving roller and the redirecting roller, wherein the portion of the conveyor belt that carries the conveyed material during the working period is called the carrying conveyor belt, and the portion of the conveyor belt that returns without load during the working period is called the return conveyor belt. The original state of the conveyor belt packaging when leaving the factory is a tape roll wound on the bobbin;

[0014] The intermediate frame is provided with an upper roller for supporting the carrying conveyor belt and a lower roller for supporting the return conveyor belt;

[0015] The invention is characterized by comprising:

[0016] S1) the steps of making the conveyor belt dragging chuck and temporary fixer, S2) the steps of calculating the torque required for dragging the conveyor belt and selecting the winch, S3) the steps of determining the number of required tape rolls and setting up the tape roll support, S4) the steps of setting up the winch and preparing for dragging, S5) the step of laying the conveyor belt, S6) the step of closing the loop of the conveyor belt;

[0017] in:

[0018] S1) The steps for making the conveyor belt drag chuck and the temporary fixture include:

[0019] S11) making two T-shaped clamps of the same size and shape, wherein the T-shaped clamps include a rectangular body and a pull ear protruding from the middle of one side of the rectangular body, and the rectangular body is provided with a bolt hole, thereby forming the drag clamp;

[0020] S12) cutting two sections of steel with a length exceeding the width of the frame, and respectively opening bolt holes at both ends of the steel, so that the conveyor belt can be temporarily clamped and fixed on the frame by tightening the bolts, thereby forming the temporary fixer;

[0021] S2) The calculation of the torque required to drag the conveyor belt and the selection of the winch include:

[0022] S21) Calculate the torque F required to drag the conveyor belt using the following calculation formula:

[0023] F=k×(G1+G2)×R×P±G1×H

[0024] in:

[0025] F: the torque required when the conveyor belt is dragged on the upper roller or the lower roller;

[0026] k: winch torque coefficient;

[0027] G1: the weight of the conveyor belt per meter;

[0028] G2: the deadweight of the rotatable part of the upper roller or the lower roller per meter;

[0029] R: the projection area of ​​the tape roll on the horizontal plane after it is unfolded;

[0030] P: resistance coefficient of the upper roller or the lower roller;

[0031] H: the height difference between the upper and lower parts of the tape roll after it is unrolled;

[0032] +: indicates the operation when the conveyor belt is dragged from a low position to a high position;

[0033] -: indicates the operation when the conveyor belt is dragged from a high place to a low place;

[0034] S22) selecting a winch matching the maximum torque value calculated in step S21) when the conveyor belt is dragged on the upper roller or the lower roller and setting it aside;

[0035] S3) The steps of determining the number of required tape rolls and setting up the tape roll support include:

[0036] S31) firstly determining the length and joint position of each roll of the tape arriving at the construction site, then calculating the extra length of the conveyor tape required to be wound on each of the driving rollers and the redirecting rollers, and the overlap length of the conveyor tape caused by the joints, and inferring the laying distance of the conveyor tape of each roll of the tape on the long-distance belt conveyor, so as to finally determine the number of tape rolls required for laying;

[0037] S32) setting up a tape roll support at a distance in front of the head frame, then inserting a rotating shaft into the bobbin of the tape roll, and then using a lifting device to lift the tape roll and set it on the tape roll support, so that the tape roll can rotate on the tape roll support through the rotating shaft, and the conveyor tape can fall from the tape roll and be laid on the frame;

[0038] S4) The steps for setting up and hauling the winch include:

[0039] S41) setting up a winch operating platform at a distance behind the tail frame, and then fixing the winch on the winch operating platform, and making the steel wire rope of the winch always align with the central axis of the frame;

[0040] S42) lowering the starting end of the tape roll mounted on the tape roll support, clamping the two T-shaped clamps of the drag chuck on the starting end with bolts, and then connecting the wire rope on the hoist with the pull ear on the drag chuck;

[0041] S5) The steps of laying the conveyor tape include:

[0042] S51) a step of laying a return conveyor belt, S52) a step of laying a load-bearing conveyor belt, wherein:

[0043] S51) The specific steps of laying the return conveyor belt are:

[0044] All the upper rollers on the frame are removed, and all the lower rollers are retained. Then, the winch is started. The conveyor belt bearing surface is dragged down from the belt roll with the winch wire rope pulled and driven by the dragging chuck, and laid on the lower roller. When all the conveyor belts are laid on the lower roller, the conveyor belt is cut off from the belt roll, and the rear end of the conveyor belt is fixed to the frame near the head frame with the temporary fixer. The steel wire rope is continuously tightened to keep the conveyor belt at a certain tension, and then the starting end is fixed to the frame near the tail frame with the temporary fixer, thus completing the laying of the return conveyor belt.

[0045] S52) The laying steps of the load-bearing conveyor belt are specifically as follows:

[0046] The upper rollers are all installed on the original positions of the frame, and then the winch is started. The conveyor belt is dragged down from the tape roll with the bearing surface facing upwards by pulling the winch wire rope and driving the dragging chuck, and laid on the upper roller. When all the conveyor belts are laid on the upper rollers, the conveyor belt is cut off from the tape roll after reserving the lap joint length, and the tail end of the conveyor belt is fixed to the frame near the head frame by the temporary fixer. The wire rope is continued to be tightened to keep the conveyor belt at a certain tension, and then the starting end is fixed to the frame near the tail frame by the temporary fixer, thus completing the laying of the load-bearing conveyor belt.

[0047] S6) The loop closing step of the conveyor belt comprises:

[0048] S61) respectively wrapping the tail end of the return conveyor belt exposed outside the temporary fixture and the tail end of the carrier conveyor belt around the driving roller and connecting them by vulcanization bonding method, then respectively wrapping the starting end of the return conveyor belt exposed outside the temporary fixture and the starting end of the carrier conveyor belt around the redirecting roller and connecting them by vulcanization bonding method, removing the temporary fixture, and completing the laying of the conveyor belt of the long-distance belt conveyor segment;

[0049] S62) Repeat the operations of steps S3) to S61) to complete the laying of the conveying belts of all the belt conveying segments of the long-distance belt conveyor, that is, complete the laying of the conveying belts of the belt conveyor.

[0050] Further:

[0051] The winch torque coefficient k is 1.5 after considering the static friction;

[0052] The resistance coefficient P of the upper roller or the lower roller connected and installed with a rolling bearing is 0.055.

[0053] Furthermore, in the step S5), the following step is also included: S53) a subsequent step of conveying the adhesive tape, specifically:

[0054] When the conveyor tape on a roll of the tape roll is completely laid on the upper roller or the lower roller but still cannot cover all the upper rollers or the lower rollers that should be covered, the bobbin without the conveyor tape is first removed from the tape roll holder by a lifting device and then replaced with a new roll of the tape roll. The starting end of the new roll of the tape roll is lowered and connected to the ending end of the conveyor tape of the previous roll of the tape roll laid on the upper roller or the lower roller using a vulcanization bonding method, and then the operation of step S51) or S52) is continued.

[0055] Further: the tape roll support is straddled on the central axis of the frame or on the frame, and oblique supports are respectively provided on both sides.

[0056] Further: the hoisting machine operating platform is straddled on the central axis of the frame or on the frame, and oblique supports are respectively arranged on both sides.

[0057] Furthermore: the T-shaped clamp is made of a 12 mm thick steel plate, and the rectangular body thereof is provided with 8 M10×80 high-strength bolts.

[0058] Furthermore: the steel section used to make the temporary fixture is a 75×8 angle steel.

[0059] Furthermore: the front end edge of the rectangular body of the dragging chuck is more than 200 mm away from the edge line of the starting end of the conveyor belt, and the steel wire rope is connected to the pulling ear through a 5t clamp.

[0060] Furthermore: the long distance belt conveyor has a length of more than 9.5 km.

[0061] Further: the conveyor belt is a St1600-1200, 6 / 4, φ5.4 type steel wire rope core conveyor belt.

[0062] Compared with the prior art, the embodiments of the present invention have the following beneficial effects and significant improvements:

[0063] 1) The method for laying a conveyor belt of a long-distance belt conveyor provided in an embodiment of the present invention provides a complete method for laying a conveyor belt of a long-distance belt conveyor through the steps of making a conveyor belt dragging chuck and a temporary fixer, calculating the torque required for dragging the conveyor belt and selecting a winch, determining the number of required tape rolls and setting up a tape roll bracket, setting up and preparing the winch for dragging, laying the conveyor belt, and looping and closing the conveyor belt. According to this method, the laying of the conveyor belt of a long-distance belt conveyor can be completed quickly, efficiently, and with high quality while ensuring safety;

[0064] 2) The method for laying the conveyor belt of a long-distance belt conveyor provided in the embodiment of the present invention is detailed and specific, not only fully considering safety, but also having strong versatility and operability, and can complete the laying of the conveyor belt of the long-distance belt conveyor on time, and effectively guarantee the laying quality of the conveyor belt, and can also effectively guide the installation and laying of the conveyor belt of the same or similar long-distance belt conveyor, which has pioneering and guiding significance;

[0065] 3) The method for laying the conveyor belt of a long-distance belt conveyor provided by the embodiment of the present invention can not only ensure that the conveyor belt is laid on time, but also has low construction costs and can effectively guarantee the construction quality. It can not only ensure the rights and interests of the owner, but also enable the construction party to obtain better economic benefits and achieve positive social benefits. Therefore, it is of great value for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention.

[0067] Obviously, the drawings described below are only drawings of some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, but these other drawings also belong to the drawings required for use in the embodiments of the present invention.

[0068] Figure 1 A schematic diagram of the structure of a belt conveyor segment in a method for laying a conveyor belt of a long-distance belt conveyor provided by an embodiment of the present invention;

[0069] Figure 2 A schematic diagram of the construction process of a method for laying a conveyor belt of a long-distance belt conveyor provided by an embodiment of the present invention;

[0070] Figure 3 A schematic diagram of the structure and working process of a dragging chuck used in a method for laying a conveyor belt of a long-distance belt conveyor provided by an embodiment of the present invention;

[0071] Figure 4 A schematic diagram of the three-dimensional structure of a temporary fixer used in a method for laying a conveyor belt for a long-distance belt conveyor provided in an embodiment of the present invention.

[0072] In the figure:

[0073] 100-frame, 110-head frame, 111-driving roller, 120-tail frame, 121-redirecting roller, 130-middle frame, 131-upper roller, 132-lower roller;

[0074] 200- conveyor belt, 210- load conveyor belt, 220- return conveyor belt;

[0075] 300-drag chuck, 310-rectangular body, 320-pulling ear, 330-bolt hole;

[0076] 400-temporary fixer, 410-steel, 420-bolt hole;

[0077] 500-Wire rope. DETAILED DESCRIPTION

[0078] In order to make the purpose, technical solution, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings provided in the embodiments of the present invention. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0079] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the drawings of the embodiments of the present invention are only used to distinguish different objects, rather than to describe a specific order. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0080] It should be understood that in the description of the embodiments of the present invention, some indicative orientation or position words used are only based on the orientation or position relationship shown in the drawings of the embodiments of the present invention, and are for the convenience of describing the embodiments of the present invention and simplifying the explanation, rather than indicating or implying the specific orientation, specific orientation structure and operation that the device or element described must have. Therefore, it should not be understood as a limitation of the present invention.

[0081] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "connection" and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a movable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited.

[0082] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] It should also be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be repeated in some embodiments.

[0084] The technical solution of the present invention is described in detail below with specific embodiments.

[0085] Example

[0086] This embodiment provides a method for laying a conveyor belt of a long-distance belt conveyor.

[0087] like Figure 1 The structural schematic diagram of the belt conveyor segment in the method for laying a conveyor belt of a long-distance belt conveyor provided by an embodiment of the present invention is shown as follows:

[0088] In this embodiment, the long-distance belt conveyor includes at least one belt conveying segment, and each belt conveying segment includes at least a respective frame 100 and a respective conveying belt 200;

[0089] The frame 100 includes a head frame 110 for mounting a driving roller 111, a tail frame 120 for mounting a redirecting roller 121, and an intermediate frame 130 disposed between the driving roller 111 and the redirecting roller 121;

[0090] The conveyor belt 200 is tightly looped between the driving roller 111 and the redirecting roller 121, wherein the conveyor belt portion that carries the conveyed material during the working period is called the carrying conveyor belt 210, and the conveyor belt portion that returns without load during the working period is called the return conveyor belt 220. The original state of the conveyor belt 200 when it is packaged and shipped out of the factory is a tape roll wound on the bobbin;

[0091] The intermediate frame 130 is provided with an upper roller 131 for supporting the carrying conveyor belt 210 and a lower roller 132 for supporting the return conveyor belt 220 .

[0092] like Figure 2 As shown in a schematic diagram of a construction process of a method for laying a conveyor belt of a long-distance belt conveyor provided by an embodiment of the present invention, a method for laying a conveyor belt of a long-distance belt conveyor provided by this embodiment includes:

[0093] S1) the steps of making the conveyor belt dragging chuck and temporary fixer, S2) the steps of calculating the torque required for dragging the conveyor belt and selecting the winch, S3) the steps of determining the number of required tape rolls and setting up the tape roll bracket, S4) the steps of setting up the winch and preparing for dragging, S5) the step of laying the conveyor belt, and S6) the step of looping and closing the conveyor belt.

[0094] like Figure 3 The structure of a dragging chuck used in a method for laying a conveyor belt for a long-distance belt conveyor provided by an embodiment of the present invention and a schematic diagram of its working process are shown as follows:

[0095] The drag clamp 300 includes two T-shaped clamps of the same size and shape. The T-shaped clamps include a rectangular body 310 and a pull ear 320 protruding from the middle of one side of the rectangular body 310 . A bolt hole 330 is opened on the rectangular body 310 .

[0096] like Figure 4 A schematic diagram of the three-dimensional structure of a temporary fixture used in a method for laying a conveyor belt of a long-distance belt conveyor provided by an embodiment of the present invention is shown as follows:

[0097] The temporary fixer 400 is two sections of steel 410 whose length exceeds the width of the frame 100 , and bolt holes 420 are respectively opened at both ends of the steel 410 , so that the conveyor belt 200 can be temporarily clamped and fixed on the frame 100 by tightening the bolts.

[0098] After completing the steps of making the conveyor belt drag chuck and temporary fixture in S1), perform the following steps:

[0099] S2) The calculation of the torque required to drag the conveyor belt and the selection steps of the winch include:

[0100] S21) Calculate the torque F required to drag the conveyor belt using the following calculation formula:

[0101] F=k×(G1+G2)×R×P±G1×H

[0102] in:

[0103] F: The torque required when the conveyor belt is dragged on the upper roller or the lower roller;

[0104] k: winch torque coefficient;

[0105] G1: Weight of conveyor belt per meter;

[0106] G2: The deadweight of the rotating part of the upper roller or lower roller per meter;

[0107] R: The projected area of ​​the tape roll on the horizontal plane after it is unfolded;

[0108] P: resistance coefficient of upper roller or lower roller;

[0109] H: The height difference between the upper and lower parts of the tape roll after it is unrolled;

[0110] +: indicates the operation when the conveyor belt is dragged from a low position to a high position;

[0111] -: Indicates the operation when the conveyor belt is dragged from a high place to a low place;

[0112] S22) selecting a winch matching the maximum torque value calculated in step S21) when the conveyor belt is dragged on the upper roller or the lower roller and setting it aside;

[0113] S3) Determination of the number of required tape rolls and the steps of setting up the tape roll support, specifically including:

[0114] S31) firstly determining the length and joint position of each roll of the adhesive tape arriving at the construction site, then calculating the extra length of the conveyor tape required to be wound on each driving roller and the redirecting roller, and the overlap length of the conveyor tape caused by the joint, and inferring the laying distance of each roll of the conveyor tape on the long-distance belt conveyor, thereby finally determining the number of tape rolls required for laying;

[0115] S32) setting up a tape roll support at a distance in front of the head frame, then inserting a rotating shaft into the bobbin of the tape roll, and then hoisting the tape roll with a lifting device and setting it on the tape roll support, so that the tape roll can rotate on the tape roll support through the rotating shaft, and the conveying tape can fall from the tape roll and be laid on the frame;

[0116] S4) The steps for setting up and hauling the winch include:

[0117] S41) setting up a winch operating platform at a distance behind the tail frame, and then fixing the winch on the winch operating platform, and making the steel wire rope of the winch always aligned with the central axis of the frame;

[0118] S42) lowering the starting end of the tape roll mounted on the tape roll support, clamping two T-shaped clamps of the drag chuck on the starting end with bolts, and then connecting the wire rope on the winch with the pull ear on the drag chuck;

[0119] S5) The steps of laying the conveyor tape include:

[0120] S51) a step of laying a return conveyor belt, S52) a step of laying a load-bearing conveyor belt, wherein:

[0121] S51) The specific steps of laying the return conveyor belt are:

[0122] Remove all the upper rollers on the frame, keep all the lower rollers, then start the winch, pull the winch wire rope and drive the drag chuck to drag the conveyor belt from the tape roll with the bearing surface facing down, and lay it on the lower rollers. After all the conveyor belts are laid on the lower rollers, cut the conveyor belt from the tape roll, fix the tail end of the conveyor belt on the frame near the head frame with a temporary fixer, continue to tighten the wire rope to keep a certain tension on the conveyor belt, and then fix the starting end on the frame near the tail frame with a temporary fixer, and the return conveyor belt is laid.

[0123] S52) The laying steps of the load-bearing conveyor belt are specifically as follows:

[0124] Install all the upper rollers on the original positions of the frame, then start the winch, and pull the winch wire rope and drag the clamp to drag the conveyor belt with the bearing surface facing up from the tape roll and lay it on the upper roller. When all the conveyor belts are laid on the upper roller, after reserving the lap joint length, cut the conveyor belt from the tape roll, and use a temporary fixer to fix the tail end of the conveyor belt on the frame near the head frame, continue to tighten the wire rope to keep a certain tension of the conveyor belt, and then use a temporary fixer to fix the starting end on the frame near the tail frame, and the laying of the load-bearing conveyor belt is completed;

[0125] S6) The loop closing step of the conveyor belt specifically comprises:

[0126] S61) The end head of the return conveyor belt exposed outside the temporary fixture and the end head of the load conveyor belt are respectively wound around the driving roller and connected by vulcanization bonding method, and then the starting end head of the return conveyor belt exposed outside the temporary fixture and the starting end head of the load conveyor belt are respectively wound around the redirecting roller and connected by vulcanization bonding method, and the temporary fixture is removed, and the laying of a long-distance belt conveyor segment conveyor belt is completed;

[0127] S62) Repeat the operations of steps S3) to S61) to complete the laying of the conveyor belts of all belt conveyor segments of the long-distance belt conveyor, that is, complete the laying of the conveyor belts of the belt conveyor.

[0128] In the specific implementation process of the above-mentioned long-distance belt conveyor conveyor belt laying method:

[0129] After considering the static friction, the winch torque coefficient k is taken as 1.5;

[0130] The resistance coefficient P of the upper roller or lower roller installed with rolling bearing connection is 0.055.

[0131] Similarly, in the specific implementation process of the above-mentioned long-distance belt conveyor conveyor belt laying method:

[0132] The tape roll support is straddled on the central axis of the frame or on the frame, and the two sides are reinforced with oblique supports respectively;

[0133] The winch operating platform is straddled on the central axis of the frame or on the frame, and both sides are reinforced with oblique supports.

[0134] In this embodiment, the T-shaped clamp in the drag clamp 300 can be made of a 12 mm thick steel plate, and 8 M10×80 high-strength bolts are set on its rectangular body 310 to effectively and firmly connect with the conveyor belt 200.

[0135] In addition, the front edge of the rectangular body 310 of the dragging clamp 300 is more than 200 mm away from the edge line of the starting end of the conveyor belt 200, thereby ensuring that the starting end of the conveyor belt 200 will not be pulled apart.

[0136] In an optional implementation, the steel wire rope 500 is connected to the pull ear 320 via a 5t clasp (not shown).

[0137] Likewise, in an optional implementation, the steel section used to make the temporary fixture is a 75×8 angle steel.

[0138] Further, the step S5) further includes:

[0139] S53) The subsequent steps of conveying the adhesive tape are as follows:

[0140] When the conveyor tape on a roll of tape cannot cover all the upper rollers or lower rollers that should be covered after all the conveyor tape on the roll is laid on the upper rollers or lower rollers, the bobbin without the conveyor tape is first removed from the tape roll holder by a lifting device and then replaced with a new roll of tape. The starting end of the new roll of tape is put down and connected with the end end of the conveyor tape of the previous roll of tape laid on the upper rollers or lower rollers by a vulcanization bonding method, and then the operation of step S51) or S52) is continued to make full use of the conveyor tape.

[0141] Furthermore, in this embodiment, the long-distance belt conveyor has a length of more than 9.5 km.

[0142] Furthermore, in this embodiment, the conveyor belt is a St1600-1200, 6 / 4, φ5.4 steel cord conveyor belt to meet production needs.

[0143] From the above, we can see that:

[0144] First, the present embodiment provides a method for laying a conveyor belt of a long-distance belt conveyor, which includes the steps of making a conveyor belt dragging chuck and a temporary fixer, calculating the torque required for dragging the conveyor belt and selecting a winch, determining the number of required tape rolls and setting up a tape roll bracket, setting up a winch and preparing for dragging, laying the conveyor belt, and looping and closing the conveyor belt. This method provides a complete method for laying a conveyor belt of a long-distance belt conveyor, and according to this method, the conveyor belt of a long-distance belt conveyor can be laid quickly, efficiently, and with high quality while ensuring safety.

[0145] Secondly, the method for laying the conveyor belt of a long-distance belt conveyor provided in this embodiment is detailed and specific, not only fully considering safety, but also having strong versatility and operability, and can complete the laying of the conveyor belt of a long-distance belt conveyor on time, and effectively guarantee the laying quality of the conveyor belt, and can also effectively guide the installation and laying of the conveyor belt of the same or similar long-distance belt conveyor, which has pioneering and guiding significance;

[0146] Again, the method for laying the conveyor belt of a long-distance belt conveyor provided in this embodiment can not only ensure that the laying of the conveyor belt is completed on time, but also has low construction costs and can effectively guarantee the construction quality. It can not only guarantee the rights and interests of the owner, but also the construction party can obtain better economic benefits and achieve positive social benefits. Therefore, it is of great value for promotion and application.

[0147] In the description of the above manual:

[0148] The terms "this embodiment", "an embodiment of the present invention", "as shown in ...", "further", "as an optional technical solution", etc., mean that the specific features, structures, materials or characteristics described in the embodiment or example are included in at least one embodiment or example of the present invention;

[0149] In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials or characteristics described may be combined or combined in any one or more embodiments or examples in a suitable manner;

[0150] In addition, under the premise that no contradiction occurs, a person of ordinary skill in the art may combine or combine different embodiments or examples and features of different embodiments or examples described in this specification.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail 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 these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. The non-essential improvements, adjustments or replacements made by those skilled in the art based on the contents of this specification are all within the scope of protection required by the present invention.

Claims

1. A method for laying a conveyor belt of a long-distance belt conveyor, wherein the long-distance belt conveyor comprises at least one belt conveyor segment, and each of the belt conveyor segments comprises at least a respective frame and a respective conveyor belt; The frame includes a head frame for mounting a driving roller, a tail frame for mounting a redirecting roller, and an intermediate frame arranged between the driving roller and the redirecting roller; The conveyor belt is tightly looped between the driving roller and the redirecting roller, wherein: The portion of the conveyor belt that carries the conveyed material during the working period is called the carrying conveyor belt, and the portion of the conveyor belt that returns empty during the working period is called the return conveyor belt. The original state of the conveyor belt packaging when leaving the factory is a tape roll wound on a bobbin; The intermediate frame is provided with an upper roller for supporting the carrying conveyor belt and a lower roller for supporting the return conveyor belt; The invention is characterized by comprising: S1) The steps for making the conveyor belt drag chuck and temporary fixture include: S11) making two T-shaped clamps of the same size and shape, wherein the T-shaped clamps include a rectangular body and a pull ear protruding from the middle of one side of the rectangular body, and the rectangular body is provided with a bolt hole, thereby forming the drag clamp; S12) cutting two sections of steel with a length exceeding the width of the frame, and respectively opening bolt holes at both ends of the steel, so that the conveyor belt can be temporarily clamped and fixed on the frame by tightening the bolts, thereby forming the temporary fixer; S2) Calculation of the torque required to drag the conveyor belt and selection of the winch include: S21) Calculate the torque F required to drag the conveyor belt using the following calculation formula: F=k×(G1+G2)×R×P±G1×H in: F: the torque required when the conveyor belt is dragged on the upper roller or the lower roller; k: winch torque coefficient; G1: The weight of the conveyor belt per meter; G2: the deadweight of the rotatable part of the upper roller or the lower roller per meter; R: the projection area of ​​the tape roll on the horizontal plane after it is unfolded; P: resistance coefficient of the upper roller or the lower roller; H: the height difference between the upper and lower parts of the tape roll after it is unrolled; +: indicates the operation when the conveyor belt is dragged from a low position to a high position; -: indicates the operation when the conveyor belt is dragged from a high place to a low place; S22) selecting a winch matching the maximum torque value calculated in step S21) when the conveyor belt is dragged on the upper roller or the lower roller and setting it aside; S3) Determination of the number of tape rolls required and steps for setting up the tape roll support, including: S31) firstly determine the length and joint position of each roll of the tape arriving at the construction site, then calculate the extra length of the conveyor tape required to be wound on each of the driving rollers and the redirecting rollers, and the overlap length of the conveyor tape caused by the joints, and infer the distance of the conveyor tape of each roll of the tape laid on the long-distance belt conveyor, so as to finally determine the number of tape rolls required for laying; S32) setting up a tape roll support at a distance in front of the head frame, then inserting a rotating shaft into the bobbin of the tape roll, and then using a lifting device to lift the tape roll and set it on the tape roll support, so that the tape roll can rotate on the tape roll support through the rotating shaft, and the conveyor tape can fall from the tape roll and be laid on the frame; S4) The steps for setting up and hauling the winch include: S41) setting up a winch operating platform at a distance behind the tail frame, and then fixing the winch on the winch operating platform, and making the steel wire rope of the winch always align with the central axis of the frame; S42) lowering the starting end of the tape roll mounted on the tape roll support, clamping the two T-shaped clamps of the drag clamp on the starting end with bolts, and then connecting the wire rope on the winch with the lug on the drag clamp; S5) The steps for laying the conveyor tape include: S51) The laying of the return conveyor belt is as follows: All the upper rollers on the frame are removed, and all the lower rollers are retained. Then, the winch is started. The conveyor belt bearing surface is dragged down from the belt roll with the winch wire rope pulled and driven by the dragging chuck, and laid on the lower roller. When all the conveyor belts are laid on the lower roller, the conveyor belt is cut off from the belt roll, and the rear end of the conveyor belt is fixed to the frame near the head frame with the temporary fixer. The steel wire rope is continuously tightened to keep the conveyor belt at a certain tension, and then the starting end is fixed to the frame near the tail frame with the temporary fixer, thus completing the laying of the return conveyor belt. S52) The steps for laying the load-bearing conveyor belt are as follows: The upper rollers are all installed on the original positions of the frame, and then the winch is started. The conveyor belt is dragged down from the tape roll with the bearing surface facing upwards by pulling the winch wire rope and driving the dragging chuck, and laid on the upper roller. When all the conveyor belts are laid on the upper rollers, the conveyor belt is cut off from the tape roll after reserving the lap joint length, and the tail end of the conveyor belt is fixed to the frame near the head frame by the temporary fixer. The wire rope is continued to be tightened to keep the conveyor belt at a certain tension, and then the starting end is fixed to the frame near the tail frame by the temporary fixer, thus completing the laying of the load-bearing conveyor belt. S6) The loop closing step of the conveyor belt comprises: S61) respectively wrapping the tail end of the return conveyor belt exposed outside the temporary fixture and the tail end of the carrier conveyor belt around the driving roller and connecting them by vulcanization bonding method, then respectively wrapping the starting end of the return conveyor belt exposed outside the temporary fixture and the starting end of the carrier conveyor belt around the redirecting roller and connecting them by vulcanization bonding method, removing the temporary fixture, and completing the laying of the conveyor belt of one belt conveyor segment of the long-distance belt conveyor; S62) Repeat the operations from step S3) to S61) to complete the laying of the conveying belts of all the belt conveying segments of the long-distance belt conveyor, that is, complete the laying of the conveying belts of the belt conveyor.

2. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The winch torque coefficient k is 1.5 after considering the static friction; The resistance coefficient P of the upper roller or the lower roller connected and installed with a rolling bearing is 0.

055.

3. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: In the step S5), the following steps are also included: S53) a subsequent step of conveying the adhesive tape, specifically: When the conveyor tape on a roll of the tape roll cannot cover all the upper rollers or the lower rollers that should be covered after being completely laid on the upper rollers or the lower rollers, the bobbin without the conveyor tape is first removed from the tape roll holder by a lifting device and then replaced with a new roll of the tape roll. The starting end of the new roll of the tape roll is put down and connected with the ending end of the conveyor tape of the previous roll of the tape roll laid on the upper rollers or the lower rollers by a vulcanization bonding method, and then the operation of step S51) or S52) is continued.

4. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The tape roll support is straddled on the central axis of the frame or on the frame, and oblique supports are respectively arranged on both sides.

5. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The hoisting machine operating platform is straddled on the central axis of the frame or on the frame, and oblique supports are respectively arranged on both sides.

6. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The T-shaped clamp is made of a 12 mm thick steel plate, and the rectangular body thereof is provided with 8 M10×80 high-strength bolts.

7. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The steel section used to make the temporary fixture is a 75×8 angle steel.

8. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The front end edge of the rectangular body of the dragging chuck is more than 200 mm away from the edge line of the starting end of the conveyor belt, and the steel wire rope is connected to the pulling ear through a 5t clamp.

9. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The long distance belt conveyor has a length of more than 9.5 km.

10. The method for laying a conveyor belt for a long-distance belt conveyor as claimed in claim 1, characterized in that: The conveyor belt is a St1600-1200, 6 / 4, φ5.4 type steel wire rope core conveyor belt.

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