CN111591708A - Laying method of long-distance belt conveyor conveying rubber belt - Google Patents

Abstract

The invention provides a laying method of a conveying belt of a long-distance belt conveyor, which comprises the steps of manufacturing a dragging chuck and a temporary fixer of the conveying belt, calculating the torsion required by dragging the conveying belt and selecting a winch, determining the quantity of required rubber belt rolls and erecting a rubber belt roll bracket, erecting and dragging the winch, laying the conveying belt and closing the loop joint of the conveying belt. The invention is a set of complete, detailed, concrete, general and strong-operability technical scheme, can finish the laying of the long-distance belt conveyor conveying rubber belt quickly, efficiently and with high quality on the basis of ensuring the safety, has low construction cost and good construction quality, can ensure the rights of owners, can obtain better economic benefits for constructors, can also obtain positive social benefits, can effectively guide the laying operation of the similar or similar long-distance belt conveyor conveying rubber belt, has pioneering and instructive significance, and has great popularization and application values.

Description

Laying method of conveyor belt for long distance belt conveyor

technical field

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

Background technique

Belt conveyor is a friction-driven machine that transports materials in a continuous manner. It is mainly composed of racks, conveyor belts, idlers, rollers, tensioning devices, transmission devices, etc. From the feeding point to the final discharge point, a material conveying channel is formed, which can not only carry out the conveying of bulk materials, but also carry out the conveying of finished items. The production process is coordinated to form a rhythmic assembly line.

The conveying line of the belt conveyor is flexible and adaptable. The length of the line can be determined according to the needs, from a few meters as short as a few kilometers. It can be installed in small tunnels or erected above the ground traffic chaos and dangerous areas. Therefore, it is an extremely versatile material transportation equipment.

Usually, the conveyor belt of the belt conveyor runs on the idler together with the load, and the conveyor belt is both a traction mechanism and a bearing mechanism, and there is no relative movement between the load and the conveyor belt.

Belt conveyors are generally installed and debugged for fixed equipment and facilities such as racks. After the racks and other installations have been accepted and accepted, the conveyor belts are laid and looped.

The conveyor belt is the last process during the installation of the belt conveyor and before commissioning and operation. It is a very important part of completing the installation task of the conveyor on time. At the same time, the quality of the conveyor belt laying will directly affect the belt conveyor. The normal operation and service life of the machine are the key to ensure the production and the interests of the owner.

The general belt conveyor is relatively easy to lay due to the short conveyor belt, but for the long-distance belt conveyor, the conveyor belt used not only needs a long length, but also needs to ensure good strength. The conveyor belt on the belt conveyor is not only long, but also heavy, and it is very difficult to lay. Moreover, it is very difficult to ensure that the long-distance conveyor belt does not cause quality problems such as deviation.

In the prior art, there are some guiding opinions and operating specifications for the laying method of the conventional belt conveyor belt conveyor, but there are no enlightening documents and practical documents with guiding and enlightening significance for the laying of the long distance belt conveyor belt conveyor belt. method of operation.

SUMMARY OF THE INVENTION

In order to solve the deficiencies of the prior art, the embodiment of the present invention provides a method for laying a long-distance belt conveyor conveyor belt, the purpose is to quickly, efficiently and high-quality complete the long-distance belt conveyor conveying on the basis of ensuring safety. The laying of the tape ensures that the installation of the long-distance belt conveyor is completed on time and the owner's rights and interests.

For reaching the above-mentioned purpose, the embodiments of the present invention provide the following technical solutions:

A method for laying a conveyor belt for a long-distance belt conveyor, wherein the long-distance belt conveyor includes no less than one belt conveyor segment, and each of the belt conveyor segments at least includes a respective frame and a respective conveyor belt;

The frame includes a head frame for installing a driving roller, a tail frame for installing a redirecting roller, and an intermediate frame arranged between the driving roller and the redirecting roller;

The conveying belt is tightly sleeved between the driving roller and the redirecting roller, wherein the portion of the conveying belt that carries the conveyed material during the working period is called the carrying conveyor belt, and the portion of the conveying belt that carries the conveying material during the working period is called the carrying conveyor belt. The conveyor belt part is called the return conveyor belt, and the original state of the conveyor belt when it leaves the factory is the tape roll wound on the bobbin;

The intermediate frame is provided with an upper idler for supporting the carrying conveyor belt and a lower idler for supporting the return conveyor belt;

It is characterized in that it includes:

S1) the production steps of the conveyor belt dragging chuck and the temporary fixer, S2) the calculation of the torque required to drag the conveyor belt and the selection steps of the hoist, S3) the determination of the required tape roll quantity and the erection steps of the tape roll support , S4) the erection of the hoist and the preparation step for dragging, S5) the laying step of the conveying tape, and S6) the looping and closing step of the conveying tape;

in:

S1) the production steps of the conveyor belt dragging chuck and the temporary fixer, including:

S11) Making two T-shaped splints with the same size and shape, the T-shaped splint includes a rectangular body and a pull lug protruding from the middle of one side of the rectangular body, and the rectangular body is provided with bolt holes, so as to forming the drag chuck;

S12) intercepting two sections of section steel whose length exceeds the width of the frame, and respectively opening bolt holes at both ends of the section steel, so that the conveyor belt can be temporarily clamped and fixed on the frame by the locking of the bolts, Thereby forming the temporary fixer;

S2) Calculation of the torque required to drag the conveyor belt and the selection steps of the hoist, including:

S21) Calculate the torque F required to drag the conveyor belt through the following formula:

F=k×(G ₁ +G ₂ )×R×P±G ₁ ×H

in:

F: is the torque required when the conveyor belt is dragged on the upper idler or the lower idler;

k: hoist torque coefficient;

G ₁ : the self-weight of the conveyor belt per meter;

G ₂ : the self-weight of the rotatable part per meter length of the upper idler or the lower idler;

R: the projected area of the tape roll on the horizontal plane after unwinding;

P: the resistance coefficient of the upper idler or the lower idler;

H: the upper and lower height difference after the tape roll is unfolded;

+: Indicates the operation when the conveyor belt is dragged from a low place to a high place;

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

S22) according to step S21), the maximum value of the required torsion force when the conveyor belt is dragged on the upper idler or the lower idler calculated by step S21) selects the hoist that matches the maximum value of the torsion, for standby;

S3) Determination of the number of required tape rolls and the erection steps of the tape roll support, including:

S31) First determine the length and joint position of each roll of the tape that arrives at the construction site, and then calculate the length of the conveying tape that needs to be wound on each of the driving rollers and the redirecting rollers, and the length of the conveyor belt The lap length of the conveying tape due to the joints, infer the distance that the conveying tape of each roll of the tape roll is laid on the long-distance belt conveyor, so as to finally determine the number of tape rolls required for laying;

S32) erect a tape roll support at a distance from the head frame, then insert a rotating shaft into the bobbin of the tape roll, and then use a lifting device to hoist the tape roll and set it up on the tape roll On the tape roll support, the tape roll can be rotated on the tape roll support through the rotating shaft, and the conveyor tape can be dropped from the tape roll and laid on the frame;

S4) the erection and hauling preparation steps of the hoist, including:

S41) Set up a winch operating table at a distance behind the tailstock, then fix the winch on the winch operating table, and make the wire rope of the winch always align with the middle of the frame axis;

S42) Put down the starting end head of the tape roll erected on the tape roll support, and fix the two T-shaped splints of the dragging chuck on the starting end head with bolts , and then use the wire rope on the hoist to connect with the pull ear on the drag chuck;

S5) the laying step of conveying tape, including:

S51) the laying step of the return conveyor belt, S52) the laying step of the bearing conveyor belt, wherein:

S51) The laying steps of the return conveyor belt are as follows:

Remove all the upper idlers on the frame, keep all the lower idlers, and then start the hoist, through the pulling of the wire rope of the hoist and the driving of the drag chuck, the The conveyor belt is pulled down from the tape roll with the bearing surface facing down, and laid on the lower idler roller. After all the conveyor belts are laid on the lower idler roller, the conveyor belt is removed from the tape roll Cut up and down, use the temporary fixer to fix the end of the conveyor belt on the frame near the head frame, continue to tighten the wire rope to keep the conveyor belt in a certain tension, and then pass the The temporary fixer fixes the starting end head on the frame near the tailstock, that is, the laying of the return conveyor belt is completed;

S52) the laying steps of the carrying conveyor belt are as follows:

All the upper rollers are installed on the original position of the frame, and then the hoist is started, and the carrying surface of the conveyor belt is pulled by the pulling of the wire rope of the hoist and the driving of the drag chuck. It is dragged from the tape roll and laid on the upper idler roller. After all the conveying tapes are laid on the upper idler, after the length of the lap joint is reserved, the conveying tape is Cut from the tape roll, use the temporary fixer to fix the end of the conveyor tape on the frame near the head frame, and continue to tighten the wire rope to make the conveyor tape Maintain a certain tension, and then fix the starting end head on the frame near the tailstock through the temporary fixer, that is, the laying of the carrying conveyor belt is completed;

S6) the looping and closing step of conveying tape, comprising:

S61) Respectively wrap the rear end of the return conveyor belt exposed outside the temporary fixer and the rear end of the bearing conveyor belt around the driving roller and connect them by vulcanization bonding, and then connect the The initial end head of the return conveyor belt exposed outside the temporary fixer and the initial end head of the bearing conveyor belt are wound around the redirecting roller and then connected by vulcanization and bonding, and the temporary fixation is removed. device, that is, to complete the laying of the conveyor belt for one of the long-distance belt conveyor segments;

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

further:

The torque coefficient k of the hoist is 1.5 after considering static friction;

The resistance coefficient P of the upper idler or the lower idler, which is connected and installed with a rolling bearing, is 0.055.

Further, in the described S5) step, it also includes: S53) the continuation step of conveying the tape, specifically:

When all the conveying tapes on a roll of the tape roll are laid on the upper or lower rollers and still cannot cover all the upper or lower rollers that should be covered , then first use a lifting device to remove the bobbin without the conveyor tape from the tape roll support, then replace it with a new roll of the tape, and put down the starting end of the new roll of the tape The head is connected with the end of the conveying tape of the last roll of the tape roll laid on the upper idler or the lower idler by a vulcanization bonding method, and then proceed to step S51) or S52) step. operate.

Further: the tape roll support is straddled on the central axis of the frame or on the frame, and two sides are respectively provided with diagonal supports.

Further: the hoist operating platform is arranged astride on the central axis of the frame or on the frame, and two sides are respectively provided with diagonal supports.

Further: the T-shaped splint is made of 12mm thick steel plate, and the rectangular body is provided with 8 M10×80 high-strength bolts.

Further: the section steel for making the temporary fixer is a 75×8 angle steel.

Further: the front edge of the rectangular main body of the dragging chuck is more than 200mm 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 snap ring.

Further: the length of the long-distance belt conveyor is more than 9.5km.

Further: the conveyor belt is St1600-1200, 6/4, φ5.4 type steel cord conveyor belt.

Compared with the prior art, the beneficial effects and significant progress of the embodiments of the present invention are:

1) the laying method of the long-distance belt conveyor conveying tape provided by the embodiment of the present invention, through the manufacturing step of dragging the chuck and the temporary fixer by the conveying tape, the calculation of the torque required for dragging the conveying tape and the selected step of the hoist, Determination of the required number of tape rolls and the erection steps of the tape roll support, the erection of the hoist and the preparation steps for hauling, the laying steps of the conveyor belt, and the looping and closing steps of the conveyor belt provide a complete set of conveyor belts for long-distance belt conveyors. Laying method, according to this method, on the basis of ensuring safety, the laying of the long-distance belt conveyor conveyor belt can be completed quickly, efficiently and with high quality;

2) The laying method of the long-distance belt conveyor conveyor belt provided by the embodiment of the present invention is detailed and specific, not only fully considers safety, but also has strong versatility and operability, and can complete the long-distance belt conveyor conveyor belt on time. It can 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 is of pioneering and instructive significance;

3) The laying method of the long-distance belt conveyor conveyor belt provided by the embodiment of the present invention can not only ensure that the laying of the conveyor belt is completed on time, but also the construction cost is low, the construction quality can be effectively guaranteed, and the rights and interests of the owners can be guaranteed. It can also obtain better economic benefits and positive social benefits. Therefore, it has great promotion and application value.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following briefly introduces the accompanying drawings required for the embodiments of the present invention.

Obviously, the drawings in the following description are only drawings of some embodiments of the present invention. For those of ordinary skill in the art, without creative effort, other drawings can also be obtained from these drawings. The accompanying drawings, but these other drawings also belong to the drawings required to be used in the embodiments of the present invention.

1 is a schematic structural diagram of a belt conveying segment in a method for laying a long-distance belt conveyor conveying tape according to an embodiment of the present invention;

2 is a schematic block diagram of a construction process of a method for laying a long-distance belt conveyor conveying tape according to an embodiment of the present invention;

3 is a schematic diagram of the structure and working process of a drag chuck used in a method for laying a long-distance belt conveyor conveying tape according to an embodiment of the present invention;

4 is a schematic three-dimensional structural diagram of a temporary fixer used in a method for laying a long-distance belt conveyor conveying tape according to an embodiment of the present invention.

In the picture:

100-frame, 110-head frame, 111-drive roller, 120-tailstock, 121-reversing roller, 130-intermediate frame, 131-upper roller, 132-lower idler;

200-conveyor belt, 210-carrying conveyor belt, 220-return conveyor belt;

300-drag chuck, 310-rectangular body, 320-pull ear, 330-bolt hole;

400-temporary fixer, 410-section steel, 420-bolt hole;

500-Wire rope.

Detailed ways

In order to make the purposes, technical solutions, beneficial effects and significant progress of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings provided in the embodiments of the present invention, Obviously, all the described embodiments are only part of the embodiments of the present invention, not all of the embodiments; based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative efforts For example, all belong to the protection scope of the present invention.

It should be noted that the terms "first" and "secondary" in the description 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. Furthermore, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or elements is not limited to the listed steps or elements, but optionally also includes unlisted steps or elements, or optionally also Include other steps or units inherent to these processes, methods, products or devices.

It should be understood that, in the description of the embodiments of the present invention, some indicative azimuth or position terms used are only based on the azimuth or positional relationship shown in the drawings of the embodiments of the present invention, for the convenience of describing the present invention The examples and simplified descriptions are not intended to indicate or imply the particular orientation, particular orientation configuration and operation that the described device or element must have, and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installation", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection or an active connection, It can also be integrated; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise expressly defined.

For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

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

Hereinafter, the technical solutions of the present invention will be described in detail with specific embodiments.

Example

This embodiment provides a method for laying a long-distance belt conveyor conveying tape.

As shown in FIG. 1 , a schematic structural diagram of a belt conveying segment in a method for laying a long-distance belt conveyor conveying tape provided by an embodiment of the present invention:

In this embodiment, the long-distance belt conveyor includes no less than one belt conveying segment, and each belt conveying segment at least includes a respective frame 100 and a respective conveying tape 200;

The frame 100 includes a headstock 110 for installing the driving drum 111 , a tailstock 120 for installing the redirecting drum 121 , and an intermediate frame 130 disposed between the driving drum 111 and the redirecting drum 121 ;

The conveyor belt 200 is looped and tightly sleeved between the driving roller 111 and the reversing roller 121 . The part of the conveyor belt that carries the conveyed material during the working period is called the carrying conveyor belt 210 , and the part of the conveyor belt that carries the no-load return journey during the working period is called the conveyor belt 210 . The return conveyor belt 220, the original state of the conveyor belt 200 when it is packaged and shipped from the factory is the tape roll wound on the bobbin;

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

As shown in the schematic block diagram of the construction process of a method for laying a long-distance belt conveyor conveyor belt provided in FIG. 2 according to an embodiment of the present invention, the laying method for a long-distance belt conveyor conveyor belt provided by the present embodiment includes:

S1) the production steps of the conveyor belt dragging chuck and the temporary fixer, S2) the calculation of the torque required to drag the conveyor belt and the selection steps of the hoist, S3) the determination of the required tape roll quantity and the erection steps of the tape roll support , S4) the erection and hauling preparation steps of the hoist, S5) the laying steps of the conveying tape, and S6) the looping and closing steps of the conveying tape.

The structure of the drag chuck used in the laying method of the long-distance belt conveyor conveying tape provided by the embodiment of the present invention and the schematic diagram of its working process are shown in Figure 3:

The drag chuck 300 includes two T-shaped splints of the same size and shape. The T-shaped splint includes a rectangular body 310 and a pull lug 320 protruding from one side of the rectangular body 310, and the rectangular body 310 is provided with bolt holes 330.

Figure 4 is a schematic diagram of a three-dimensional structure of a temporary fixer used in a method for laying a long-distance belt conveyor conveyor belt provided by an embodiment of the present invention:

The temporary fixer 400 is two sections of section steel 410 with a length exceeding the width of the frame 100, and bolt holes 420 are respectively provided at both ends of the section steel 410, so that the conveyor belt 200 can be temporarily clamped to the frame 100 by locking the bolts. superior.

After completing S1) the production steps of the conveyor belt drag chuck and the temporary fixer, carry out the following operation steps:

S2) Calculation of the torque required to drag the conveyor belt and the selection steps of the hoist, specifically including:

S21) Calculate the torque F required to drag the conveyor belt through the following formula:

F=k×(G ₁ +G ₂ )×R×P±G ₁ ×H

in:

F: It is the torque required when the conveyor belt is dragged on the upper or lower idler roller;

k: hoist torque coefficient;

G ₁ : the self-weight of the conveyor belt per meter;

G ₂ : The self-weight of the rotatable part per meter length of the upper idler or lower idler;

R: the projected area of the tape roll on the horizontal plane after unwinding;

P: the resistance coefficient of the upper idler or lower idler;

H: The upper and lower height difference after the tape roll is unfolded;

+: Indicates the operation when the conveyor belt is dragged from a low place to a high place;

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

S22) according to step S21) the maximum value of the required torsion force when the obtained conveying tape is calculated and dragged on the upper idler or the lower idler roller is selected and the hoist that matches the maximum value of this torsion is selected for standby;

S3) Determination of the number of required tape rolls and the erection steps of the tape roll support, specifically including:

S31) First, determine the length and joint position of each roll of tape that arrives at the construction site, and then calculate the length of the conveying tape that needs to be wrapped around each driving drum and the redirecting drum, and the length of the lap of the conveying tape due to the joint. , deduce the distance that the conveyor belt of each roll of tape rolls is laid on the long-distance belt conveyor, so as to finally determine the number of rolls of tape required for laying;

S32) Set up the tape roll support at a distance from the head frame, then insert the rotating shaft into the bobbin of the tape roll, and then use a lifting device to hoist the tape roll and set it on the tape roll support to make the tape roll It can be rotated on the tape roll support through the rotating shaft, and the conveyor tape can be dropped from the tape roll and laid on the frame;

S4) the erection and hauling preparation steps of the hoist, specifically including:

S41) erect the winch operating table at a distance behind the tailstock, then fix the winch on the winch operating table, and make the wire rope of the winch always align with the central axis of the frame;

S42) Put down the head of the starting end of the tape roll erected on the tape roll support, and fix the two T-shaped splints of the drag chuck on the head of the starting end with bolts, and then use the wire rope on the hoist to drag the Pull-ear connection on the collet;

S5) the laying step of conveying tape, specifically comprises:

S51) the laying step of the return conveyor belt, S52) the laying step of the bearing conveyor belt, wherein:

S51) The laying steps of the return conveyor belt are as follows:

Remove all the upper rollers on the frame, keep all the lower rollers, and then start the hoist, through the pulling of the wire rope of the hoist and the driving of the drag chuck, the conveyor belt is dragged down from the tape roll with the bearing surface facing down, and laid. On the lower idler, after all the conveyor tapes are laid on the lower idler, cut the conveyor tape from the tape roll, use a temporary fixer to fix the end of the conveyor tape on the frame near the head frame, and continue to pull Tighten the steel wire rope to maintain a certain tension of the conveyor belt, and then fix the head of the starting end on the frame near the tailstock through the temporary fixer, that is, the laying of the return conveyor belt is completed;

S52) the laying steps of the carrying conveyor belt are as follows:

Install the upper rollers on the original position of the frame, then start the hoist, and drag the conveyor belt bearing surface upward from the tape roll by pulling the wire rope of the hoist and driving the chuck, and lay it on the upper support. On the roller, when all the conveyor tapes are laid on the upper idler, after reserving the length of the lap joint, cut the conveyor tape from the tape roll, and use a temporary fixer to fix the end of the conveyor tape to the head. On the frame near the rack, continue to tighten the steel wire rope to keep the conveyor belt in a certain tension, and then fix the starting end head on the rack near the tail frame through the temporary fixer, that is, the laying of the carrying conveyor belt is completed;

S6) the looping and closing step of conveying tape, specifically includes:

S61) Respectively wrap the trailing end of the return conveyor belt exposed outside the temporary fixer with the trailing end of the load-carrying conveyor belt by wrapping the drive drum and connecting them by vulcanization and bonding, and then connect the return travel exposed outside the temporary fixture respectively. The initial end head of the conveyor belt and the initial end head of the carrying conveyor belt are wound around the redirecting roller and then connected by vulcanization bonding method, and the temporary fixer is removed, that is, the laying of the conveyor belt of a long-distance belt conveying segment is completed;

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

In the specific implementation process of the above-mentioned long-distance belt conveyor conveying tape laying method:

After considering the static friction, the torque coefficient k of the hoist is 1.5;

The resistance coefficient P of the upper idler or lower idler connected with rolling bearings is 0.055.

Similarly, in the specific implementation process of the above-mentioned long-distance belt conveyor conveying tape laying method:

The tape roll bracket is mounted on the central axis of the frame or on the frame, and the two sides are respectively reinforced with diagonal supports;

The hoist operating table is arranged astride on the central axis of the frame or on the frame, and the two sides are respectively reinforced with oblique supports.

In this embodiment, the T-shaped splint in the drag chuck 300 can be made of a steel plate with a thickness of 12 mm, and eight M10×80 high-strength bolts are arranged on the rectangular main body 310 for effective and firm connection with the conveyor belt 200 .

In addition, the front edge of the rectangular main body 310 of the drag chuck 300 is more than 200 mm away from the edge line of the starting end of the conveyor belt 200, so as to ensure that the starting end of the conveyor belt 200 will not be pulled and cracked.

In an optional implementation process, the wire rope 500 is connected to the pull lug 320 through a 5t snap ring (not shown in the figure).

Also, in an optional implementation process, the section steel for making the temporary fixer is a 75×8 angle steel.

Further, be implemented in S5) in step, also include:

S53) the continuation steps of conveying the tape, specifically:

When the conveying tape on a roll of tape roll is all laid on the upper or lower roller and still cannot cover all the upper or lower rollers that should be covered, first use lifting equipment to remove the empty conveying tape. The bobbin is removed from the tape roll support and then replaced with a new roll of tape, and the starting end head of the new roll of tape is put down and the conveying of the previous roll of tape laid on the upper or lower roller. The end of the tape is connected by the vulcanization bonding method, and then the operation of step S51) or S52) is continued, so as to make full use of the conveying tape.

Further, in this embodiment, the length of the long-distance belt conveyor is more than 9.5km.

Further, in this embodiment, the conveyor belt is selected from St1600-1200, 6/4, φ5.4 type steel cord conveyor belt to meet the needs of production.

From the above, it can be seen that:

First of all, the method for laying the long-distance belt conveyor conveyor belt provided in this embodiment includes the steps of manufacturing the chuck and the temporary fixer by the conveyor belt, the calculation of the torque required for dragging the conveyor belt, and the selection steps of the hoist. Determination of the number of tape rolls and the steps of erecting the tape roll support, the erection of the hoist and the preparation steps for hauling, the laying steps of the conveyor belt, and the looping and closing steps of the conveyor belt, providing a complete set of long-distance belt conveyor conveyor belt laying steps According to this method, the laying of the long-distance belt conveyor conveyor belt can be completed quickly, efficiently and with high quality on the basis of ensuring safety;

Secondly, the laying method of the long-distance belt conveyor conveyor belt provided in this embodiment is detailed and specific, not only fully considers the safety, but also has strong versatility and operability, and can complete the laying of the long-distance belt conveyor conveyor belt on time. , and effectively ensure 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 is of pioneering and instructive significance;

Thirdly, the method for laying the conveyor belt of the 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 the construction cost is low, the construction quality can be effectively guaranteed, and the rights and interests of the owner can be guaranteed. It can also obtain better economic benefits and positive social benefits. Therefore, it has great promotion and application value.

During the description of the above specification:

The description of the terms "this embodiment", "this embodiment of the present invention", "as shown", "further", "as an optional technical solution", etc., means the description of the embodiment or example. A particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present invention;

In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example, and the particular features, structures, materials, or characteristics, etc. described may be used in any one or more embodiments or examples as appropriate in combination or combination;

Furthermore, those of ordinary skill in the art may combine or combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without creating a contradiction.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that , it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technology of each embodiment of the present invention. The scope of the solution, and the non-essential improvements, adjustments or replacements made by those skilled in the art according to the contents of this specification are all within the scope of the claimed protection of the present invention.

Claims (10)

1. A method of laying down a conveyor belt of an long-reach belt conveyor, the long-reach belt conveyor comprising at least one belt conveyor segment, each of the belt conveyor segments comprising at least a respective frame and a respective conveyor belt;

the rack comprises a head frame for mounting a driving roller, a tail frame for mounting a turnabout roller and an intermediate frame arranged between the driving roller and the turnabout roller;

the conveying rubber belt is tightly sleeved between the driving roller and the direction-changing roller in a surrounding mode, wherein the part of the conveying rubber belt which bears conveying materials in the working period is called a bearing conveying belt, the part of the conveying rubber belt which does not bear return load in the working period is called a return conveying belt, and the original state of the conveying rubber belt package when leaving a factory is a rubber belt roll wound on a shuttle core;

an upper carrier roller for supporting the bearing conveyer belt and a lower carrier roller for supporting the return conveyer belt are arranged on the middle frame;

it is characterized by comprising:

s1) manufacturing steps of the conveying belt dragging chuck and the temporary fixer, which comprise:

s11) manufacturing two T-shaped clamping plates with the same size and shape, wherein each T-shaped clamping plate comprises a rectangular main body and a pull lug protruding from the middle part of one side of the rectangular main body, and the rectangular main body is provided with a bolt hole so as to form the dragging chuck;

s12) cutting two sections of section steel with the length exceeding the width of the frame, and respectively arranging bolt holes at two ends of the section steel so that the section steel can be locked by the bolts to temporarily clamp and fix the conveying rubber belt on the frame to form the temporary fixer;

s2) calculating the torque force required by dragging the conveying rubber belt and selecting a winch, wherein the method comprises the following steps:

s21) calculating the torque force F required by dragging the conveying rubber belt by the following calculation formula:

F＝k×(G₁+G₂)×R×P±G₁×H

wherein:

f: the torque force is required when the conveying rubber belt is dragged on the upper carrier roller or the lower carrier roller;

k: the torque coefficient of the winch;

G₁: the self weight of each meter of the conveying rubber belt;

G₂: the self weight of the rotatable part on each meter of length of the upper carrier roller or the lower carrier roller;

r: the projection area of the adhesive tape roll on the horizontal plane after being unfolded;

p: the resistance coefficient of the upper carrier roller or the lower carrier roller;

h: the height difference of the upper part and the lower part of the adhesive tape roll after being unfolded;

+: an operation showing that the conveyor belt is dragged from a low position to a high position;

-: an operation showing that the conveyor belt is dragged from a high position to a low position;

s22) selecting a winch matched with the maximum torque value according to the maximum torque value required by dragging the conveying rubber belt on the upper carrier roller or the lower carrier roller obtained by calculation in the step S21) for standby;

s3), the determination of the required adhesive tape roll quantity and the erection of the adhesive tape roll bracket comprise the following steps:

s31), firstly determining the length and joint position of each roll of the adhesive tape roll arriving at the construction site, then calculating the length of the conveyor belt which is required to be wound on each driving roller and each direction-changing roller and the length of the lap joint of the conveyor belt caused by the joint, deducing the distance of the conveyor belt of each roll of the adhesive tape roll laid on the long-distance belt conveyor, and finally determining the number of the adhesive tape rolls required during laying;

s32) erecting a tape roll bracket at a distance from the front of the headstock, then penetrating a rotating shaft into a shuttle peg of the tape roll, and then hoisting the tape roll by using a hoisting device to erect the tape roll on the tape roll bracket, so that the tape roll can rotate on the tape roll bracket through the rotating shaft, and the conveying tape can fall off from the tape roll and is laid on the rack;

s4) the preparation steps of erection and hauling of the hoist include:

s41) erecting a winch operation table at a position a distance away from the rear part of the tail frame, fixing the winch on the winch operation table, and enabling a steel wire rope of the winch to be always aligned with the central axis of the rack;

s42) putting down the head of the starting end of the adhesive tape roll erected on the adhesive tape roll bracket, oppositely clamping and fixing two T-shaped clamping plates of the dragging chuck on the head of the starting end by using bolts, and then connecting a steel wire rope on the winch with a pull lug on the dragging chuck;

s5) a step of laying a transfer tape, comprising:

s51) laying a return conveyer belt, specifically:

the upper carrier rollers on the rack are completely detached, all the lower carrier rollers are reserved, then the winch is started, the conveying rubber belt is pulled downwards from the rubber belt roll by pulling of a steel wire rope of the winch and driving of the dragging chuck and laid on the lower carrier rollers, after all the conveying rubber belts are laid on the lower carrier rollers, the conveying rubber belts are cut off from the rubber belt roll, the tail end heads of the conveying rubber belts are fixed on the rack near the headstock by the temporary fixing devices, the steel wire rope is continuously tensioned to enable the conveying rubber belts to keep certain tension, and the starting end heads are fixed on the rack near the tailstock by the temporary fixing devices, so that the laying of the return conveying belt is completed;

s52) laying of the bearing conveyor belt, which comprises the following specific steps:

mounting all the upper carrier rollers on the original positions of the rack, then starting the winch, pulling the steel wire rope of the winch and driving the dragging chuck to drag the bearing surface of the conveying belt upwards from the belt roll to lay the belt on the upper carrier rollers, cutting the conveying belt from the belt roll after the length of a lap joint is reserved after all the conveying belt is laid on the upper carrier rollers, fixing the tail end part of the conveying belt on the rack near the headstock by using the temporary fixator, continuously tensioning the steel wire rope to keep the conveying belt at a certain tension, and fixing the starting end part on the rack near the tailstock by using the temporary fixator, thus finishing the laying of the bearing conveying belt;

s6) a loop closing step of the transfer tape, including:

s61) respectively winding the tail end head of the return belt exposed outside the temporary fixer around the driving roller and then connecting the tail end head of the return belt with the tail end head of the carrier belt by a vulcanized rubber bonding method, then winding the start end head of the return belt exposed outside the temporary fixer around the direction-changing roller and then connecting the start end head of the carrier belt by a vulcanized rubber bonding method, and removing the temporary fixer, thereby completing the laying of the long-distance belt conveying section conveying rubber belt;

s62) repeating the operations of the steps S3) to S61), and completing the application of the conveyor belt of each belt conveying segment of the long-distance belt conveyor, namely completing the application of the conveyor belt of the belt conveyor.

2. A method of laying down a long distance belt conveyor belt according to claim 1, wherein:

the torsion coefficient k of the winch takes 1.5 after static friction is considered;

and the resistance coefficient P of the upper carrier roller or the lower carrier roller which is connected and installed by the rolling bearing takes the value of 0.055.

3. The method of laying down long-distance belt conveyor belt according to claim 1, wherein in said step S5), further comprising: s53), a connecting step of the conveying adhesive tape, which comprises the following specific steps:

when the conveying adhesive tape on one tape roll is completely laid on the upper carrier roller or the lower carrier roller and cannot be fully covered with all the upper carrier rollers or the lower carrier rollers to be covered, firstly, the shuttle peg without the conveying adhesive tape is taken off from the tape roll bracket by using a hoisting device, then a new tape roll is replaced, the head of the starting end of the new tape roll is put down and the head of the tail end of the conveying adhesive tape of the last tape roll laid on the upper carrier roller or the lower carrier roller are connected by adopting a vulcanized rubber bonding method, and then the operation of the step S51) or S52) is continued.

4. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the adhesive tape roll support is arranged on the central axis of the frame in a straddling manner or on the frame, and two sides of the adhesive tape roll support are respectively provided with an oblique support.

5. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the winch operation platform is arranged on the central axis of the frame in a bestriding mode or on the frame, and the two sides of the winch operation platform are respectively provided with an inclined support.

6. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the T-shaped clamping plate is made of a steel plate with the thickness of 12mm, and 8M 10 multiplied by 80 high-strength bolts are arranged on the rectangular main body.

7. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the section steel for manufacturing the temporary fixator is angle steel of 75 multiplied by 8.

8. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the edge distance between the front end edge of the rectangular main body of the dragging chuck and the edge line of the head of the starting end of the conveying rubber belt is more than 200mm, and the steel wire rope is connected with the pulling lug through a 5t clamping ring.

9. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the length of the long-distance belt conveyor is more than 9.5 km.

10. A method of laying down a long distance belt conveyor belt according to claim 1, wherein: the conveying adhesive tape is a steel wire rope core conveying belt with St1600-1200, 6/4 and phi 5.4.

Images