CN116771369A - Underground engineering slag discharging system - Google Patents

Abstract

The invention discloses an underground engineering slag discharging system, which relates to the technical field of underground engineering conveying, and comprises a shield machine, a horizontal belt conveyor and a vertical belt conveyor, wherein the shield machine comprises a rear supporting belt conveyor, the horizontal belt conveyor is arranged behind the rear supporting belt conveyor and is connected with the rear supporting belt conveyor in a continuous manner, and is used for transferring slag soil output by the rear supporting belt conveyor to a tunnel portal, and the vertical belt conveyor is arranged in a working well of the tunnel portal and is connected with the horizontal belt conveyor in a continuous manner, and is used for receiving slag soil output by the horizontal belt conveyor so as to lift the slag soil to the ground of the working well. According to the technical scheme, the horizontal belt conveyor and the vertical belt conveyor are arranged, so that uninterrupted continuous conveying of slag soil in an underground tunnel is realized, and the slag discharging speed of underground engineering is improved.

Description

Underground engineering slag discharge system

Technical field

The invention relates to the technical field of underground engineering material conveying, and in particular to an underground engineering slag discharging system.

Background technique

With the continuous development of underground engineering construction technology and tunnel excavation equipment, shield machines are increasingly used in tunnel construction. At present, the main slag discharging methods matched with the shield machine are: transporting the slag to the tunnel entrance through rail transportation in the tunnel, then using a ground gantry crane to vertically lift it to the ground slag pool in the working shaft of the tunnel entrance, and finally using a car to transfer it .

The entire process of this method is intermittent transportation, with low efficiency and long construction period. It is only suitable for tunnel construction projects with relatively short tunnel length and shallow burial depth. For construction projects with longer tunnel length and deeper burial depth, there are Great limitations, seriously slowing down the project progress.

Contents of the invention

The main purpose of the present invention is to provide an underground engineering slag discharging system, aiming to solve the problem of relatively slow slag discharging speed in underground tunnel projects with relatively long lines and relatively deep burial depths.

In order to achieve the above purpose, the underground engineering slag discharging system proposed by the present invention includes a shield machine, a horizontal belt conveyor and a vertical belt conveyor. The shield machine includes a rear matching belt conveyor, and the horizontal belt conveyor is located on the rear matching belt. The rear of the machine is connected to the rear matching belt conveyor for transferring the slag output by the rear matching belt conveyor to the tunnel entrance. The vertical belt conveyor is located in the working well of the tunnel entrance and is connected to the horizontal belt conveyor. The vertical belt conveyor is connected to the machine, and the vertical belt conveyor is used to receive the muck output by the horizontal belt conveyor to lift the muck to the working well surface.

Optionally, the height of the discharge end of the rear matching belt conveyor is higher than the height of the feed end of the horizontal belt conveyor, and a discharge is provided between the rear matching belt conveyor and the horizontal belt conveyor. warehouse, the bottom of the discharge bin is provided with a discharge port, the discharge port is directly opposite the feed end of the horizontal belt conveyor, and the slag output by the rear matching belt conveyor passes through the discharge port to fall into the feed end of the horizontal belt conveyor.

Optionally, the horizontal belt conveyor includes a telescopic belt conveyor, the tail part of the telescopic belt conveyor is fixedly connected to the tail trolley of the shield machine, and the tail part of the telescopic belt conveyor is accompanied by the tail platform of the shield machine. The vehicle moves forward to ensure that during the advancement of the shield machine, the discharge end of the rear matching belt conveyor and the feed end of the telescopic belt conveyor are always connected.

Optionally, the telescopic belt conveyor includes a tape storage assembly, and the tape storage assembly includes a tape storage bin frame, a redirection unit, a sliding tensioning unit and a tensioning drive unit, wherein the tape storage bin frame Horizontally arranged in the tunnel excavated by the shield machine, the redirection unit is fixedly arranged on the first end of the tape storage frame, and the sliding tensioning unit is opposite to the redirection unit is arranged and slidably arranged on the second end of the tape storage frame, the tensioning drive unit is connected to the sliding tensioning unit through a wire rope, and the tensioning driving unit is used to drive the sliding tensioning unit. The tensioning unit reciprocates on the tape storage frame, and the redirection unit and the sliding tensioning unit are both provided with a number of redirection rollers. The conveyor belt of the telescopic belt conveyor is wound around the belt in turn. Redirect onto the drum.

Optionally, a plurality of hoppers arranged at intervals are provided on the conveyor surface of the conveyor belt of the vertical belt conveyor, and the hoppers are used to receive the muck output from the horizontal belt conveyor.

Optionally, the underground engineering slag discharging system further includes a slag conveyor, which is disposed between the horizontal belt conveyor and the vertical belt conveyor for transferring the slag from the horizontal belt conveyor. The soil is transferred to the vertical belt conveyor.

Optionally, the shield machine is provided with two units, namely a first shield machine and a second shield machine, and the horizontal belt conveyor is provided with two units, namely a first horizontal belt conveyor and a second horizontal belt. machine, the first horizontal belt conveyor is connected to the first shield machine, the second horizontal belt conveyor is connected to the second shield machine; the slag turning belt conveyor includes a first slag turning feed end , a second slag turning feed end and a slag turning discharge end, wherein the first slag turning feed end is connected to the discharge end of the first horizontal belt conveyor, and the second slag turning feed end is connected to The discharge end of the first horizontal belt conveyor is connected, the first slag feed end and the second slag feed end intersect at the slag discharge end, and the slag discharge end is connected to the slag discharge end. The feed end of the vertical belt conveyor is connected.

Optionally, the vertical belt conveyor includes a horizontal feeding section, a horizontal discharging section and a vertical lifting section. The horizontal feeding section is installed on the tunnel floor, the horizontal discharging section is installed on the working shaft floor, and the vertical The lifting section is installed on the side wall of the working well and connects the horizontal feeding section and the horizontal discharging section; wherein, the discharging end of the slag conveyor is located above the horizontal feeding section, So that the slag output from the discharge end of the slag rotating belt conveyor falls into the horizontal feeding section under the action of gravity.

Optionally, the height of the vertical lifting section is at least seventy meters.

Optionally, the slag turning belt conveyor further includes a slag turning hopper, which is located between the discharging end of the slag turning belt conveyor and the horizontal feeding section of the vertical belt conveyor. The slag output from the discharge end of the slag rotating belt conveyor passes through the slag rotating hopper and falls into the horizontal feeding section.

The underground engineering slag discharging system of the present invention includes a shield machine, a horizontal belt conveyor and a vertical belt conveyor. The shield machine includes a rear matching belt conveyor, and the horizontal belt conveyor is located behind the rear matching belt conveyor and connected with the rear matching belt conveyor. The rear matching belt conveyor is connected continuously and is used to transfer the dregs output by the rear matching belt conveyor to the tunnel entrance. The vertical belt conveyor is located in the working well of the tunnel entrance and is connected continuously with the horizontal belt conveyor. The vertical belt conveyor is The belt conveyor is used to receive the slag output by the horizontal belt conveyor to lift the slag to the working well surface. Different from the existing technology, the underground engineering slag discharging system of the present invention is equipped with a horizontal belt conveyor and a vertical belt conveyor. The horizontal belt conveyor is located behind the rear trolley of the shield machine and is continuously connected to the rear matching belt conveyor, that is, the horizontal belt conveyor is The feed end of the belt conveyor is connected to the discharge end of the supporting belt conveyor. The horizontal belt conveyor extends along the length of the tunnel. The transport belt of the horizontal belt conveyor extends from the rear of the trolley to the working shaft of the tunnel entrance and is connected with the working shaft of the tunnel entrance. The vertical belt conveyor arranged in the working well is connected continuously, that is, the discharge end of the horizontal belt conveyor is connected with the discharging end of the vertical belt conveyor, and the transport belt of the vertical belt conveyor extends vertically from the tail of the horizontal belt conveyor to the working well ground. Among them, the length of the conveyor belt of the horizontal belt conveyor and the vertical belt conveyor can be changed according to the length of the tunnel and the depth of the working shaft, which can be suitable for excavation projects of underground tunnel projects with relatively long tunnel lines and relatively deep burial depths. During the excavation process, the shield machine excavates while transporting the excavated soil to the rear of the trolley through the accompanying belt conveyor, and then unloads the material to the horizontal belt conveyor, which discharges the material from the shield machine. The tail end extends to the tunnel opening to transport the slag output by the subsequent belt conveyor laterally to the tunnel opening. Then, the horizontal belt conveyor unloads the material to the vertical belt conveyor, and then the vertical belt conveyor lifts the dregs to the working well ground. Dumping is carried out to achieve uninterrupted and continuous transportation of slag in underground tunnels and improve the slag discharging speed of underground projects.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of an embodiment of the underground engineering slag discharging system of the present invention;

Figure 2 is a schematic diagram of the connection between the rear supporting belt conveyor and the horizontal belt conveyor of an embodiment of the underground engineering slag discharging system of the present invention;

Figure 3 is a schematic structural diagram of a vertical belt conveyor of an embodiment of the underground engineering slag discharging system of the present invention;

Figure 4 is a schematic diagram of the connection between the slag conveyor, the first horizontal belt conveyor and the second horizontal belt conveyor in an embodiment of the underground engineering slag discharging system of the present invention;

Figure 5 is a schematic structural diagram of another embodiment of the underground engineering slag discharging system of the present invention;

Figure 6 is a schematic structural diagram of the tape storage component of the underground engineering slag discharging system of Figure 5;

Figure 7 is a schematic structural diagram of the tape storage bin frame of the underground engineering slag discharging system in Figure 5;

Figure 8 is a schematic structural diagram of the redirection unit of the underground engineering slag discharging system in Figure 5;

Figure 9 is a schematic structural diagram of the sliding tensioning unit of the underground engineering slag discharging system of Figure 5;

Figure 10 is a schematic structural diagram of the tensioning drive unit of the underground engineering slag discharging system of Figure 5;

Figure 11 is a schematic structural diagram of the belt pulling unit of the underground engineering slag discharging system of Figure 5.

Explanation of reference numbers:

label name label name 100 Underground engineering slag discharge system 243 wire rope 1 shield machine 25 Drawstring unit 11 Rear matching belt conveyor 251 third body 2 Horizontal belt conveyor 252 Travel drive unit twenty one Storage tape warehouse frame 26 First horizontal belt conveyor twenty two redirection unit 27 Second level belt conveyor 221 first frame 3 Vertical belt conveyor 222 first redirection roller 31 Horizontal loading section twenty three Sliding tensioning unit 32 Horizontal discharging section 231 Second frame 33 vertical lifting section 232 Second redirection roller 4 Unloading bin twenty four Tension drive unit 5 Slag conveyor 241 reel 51 Slag transfer hopper 242 Drive unit

The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiment of the present invention are only used to explain the relationship between components in a specific posture (as shown in the drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor within the protection scope required by the present invention.

The present invention provides an underground engineering slag discharging system 100, aiming to solve the problem of relatively slow slag discharging speed in underground tunnel projects with relatively long lines and relatively deep burial depths.

Referring to Figure 1, the underground engineering slag discharging system 100 proposed by the present invention includes a shield machine 1, a horizontal belt conveyor 2 and a vertical belt conveyor 3. The shield machine 1 includes a rear matching belt conveyor 11, and the horizontal belt conveyor 2 It is located behind the rear supporting belt conveyor 11 and is continuously connected to the rear supporting belt conveyor 11, and is used to transfer the muck output by the rear supporting belt conveyor 11 to the tunnel entrance. The vertical belt conveyor 3 is located at It is inside the working shaft of the tunnel entrance and is continuously connected to the horizontal belt conveyor 2. The vertical belt conveyor 3 is used to receive the muck output by the horizontal belt conveyor 2 to lift the muck to the ground of the working shaft.

The shield machine 1 mainly consists of two parts: a main structure and a rear supporting device. The main part includes a cutterhead, a shield, a driving device, etc. The function of the rear supporting device is to provide various supports for the excavation of the main part. Among them, the rear supporting device The supporting device generally consists of a connecting bridge and several trolleys. The earth discharging mechanism of the shield machine 1 mainly includes a screw conveyor and a rear supporting belt conveyor 11. The slag is transported from the soil bin to the rear supporting belt conveyor 11 by the screw conveyor. The rear supporting belt conveyor 11 then transports the dregs backward. to the rear of the trolley. The existing conventional slag discharging method is that the slag on the supporting belt conveyor 11 falls into the earth box of the waiting slag truck. After the earth box is filled, it is hauled by the battery car along the track and transported to the shaft, and then the gantry crane lifts the earth. The box is lifted to the ground and dumped into the muck pit. The entire process of this method is intermittent transportation, which has low efficiency and long construction period. It is not suitable for large-scale tunnel construction projects.

Different from the existing technology, the underground engineering slag discharging system 100 of the present invention is provided with a horizontal belt conveyor 2 and a vertical belt conveyor 3. The horizontal belt conveyor 2 is located behind the rear trolley of the shield machine 1 and is matched with the rear belt conveyor. 11 is continuously connected, that is, the feed end of the horizontal belt conveyor 2 is connected to the discharge end of the supporting belt conveyor 11. The horizontal belt conveyor 2 extends along the length of the tunnel, and the transport belt of the horizontal belt conveyor 2 extends from the rear of the trolley. The working shaft extends to the tunnel entrance and is continuously connected to the vertical belt conveyor 3 installed in the working shaft, that is, the discharge end of the horizontal belt conveyor 2 is connected to the discharge end of the vertical belt conveyor, and the conveyor belt of the vertical belt conveyor 3 is connected from The tail of the horizontal belt conveyor 2 extends vertically to the working shaft floor. Among them, the length of the conveyor belts of the horizontal belt conveyor 2 and the vertical belt conveyor 3 can be changed according to the length of the tunnel and the depth of the working shaft, which can be suitable for excavation projects of underground tunnel projects with relatively long tunnel lines and relatively deep burial depths.

Among them, a plurality of hoppers arranged at intervals are provided on the conveyor surface of the conveyor belt of the vertical belt conveyor 3 , and the hoppers are used to receive the muck output from the horizontal belt conveyor 2 . The muck output from the horizontal belt conveyor 2 falls into the hopper and is lifted upward along with the hopper. When the hopper is raised to the top, the muck is dumped.

During the excavation process, the shield machine 1 excavates while transporting the excavated soil to the rear of the trolley through the accompanying belt conveyor 11, and then unloads the material to the horizontal belt conveyor 2, which moves from The tail end of the shield machine 1 extends to the tunnel opening to transport the muck output by the rear supporting belt conveyor 11 laterally to the tunnel opening. Subsequently, the horizontal belt conveyor 2 unloads to the vertical belt conveyor 3, and then passes through the vertical belt conveyor 3 The muck is lifted to the surface of the working well for dumping, thereby realizing uninterrupted and continuous transportation of muck in underground tunnels and increasing the speed of muck discharge in underground projects.

What needs to be explained in detail is that, with reference to Figure 2, the height of the discharge end of the rear matching belt conveyor 11 is higher than the height of the feed end of the horizontal belt conveyor 2, and the height of the rear matching belt conveyor 11 and the A discharge bin 4 is provided between the horizontal belt conveyors 2. A discharge port is provided at the bottom of the discharge bin 4. The discharge port is directly opposite the feed end of the horizontal belt conveyor 2. The rear matching belt The muck output by the machine 11 passes through the discharge port and falls into the feed end of the horizontal belt conveyor 2 .

When the rear supporting belt conveyor 11 rotates at the rear, the slag it carries falls into the feed end of the horizontal belt conveyor 2 under the action of its own gravity. In order to prevent the slag from scattering everywhere, this slag discharging system is equipped with a discharge bin 4 between the rear supporting belt conveyor 11 and the horizontal belt conveyor 2. The upper opening of the unloading bin 4 is directly opposite the discharge port of the rear supporting belt conveyor 11. , a discharge port is provided at the bottom of the discharge bin 4, and the discharge port is directly opposite to the feed end of the horizontal belt conveyor 2. Therefore, the muck output by the rear matching belt conveyor 11 first passes through the discharge bin 4, which collects the muck and then discharges it through the discharge port to the discharge end of the horizontal belt conveyor 2 to prevent the muck from falling. It is scattered around the discharge end of the rear matching belt conveyor 11, and the discharge bin 4 plays a buffering role in preventing the muck from splashing after falling into the horizontal belt conveyor 2.

It is not difficult to understand that as the shield machine 1 continues to advance during tunnel excavation, the position of the discharge port of the belt conveyor 11 will also move accordingly, and the discharge bin 4 should also move accordingly. And move. Therefore, the unloading bin 4 is fixedly connected to the bracket of the rear supporting belt conveyor 11. Specifically, the two sides of the unloading bin 4 perpendicular to the transportation direction of the rear supporting belt conveyor 11 are fixedly connected to the rear supporting device through fasteners, so that The unloading bin 4 can then advance with the advancement of the matching belt conveyor 11.

In the embodiment of the present invention, the horizontal belt conveyor 2 includes a telescopic belt conveyor, the tail of the telescopic belt conveyor is fixedly connected to the tail trolley of the shield machine 1, and the tail of the telescopic belt conveyor accompanies the shield. The tail trolley of the shield machine 1 moves forward to ensure that during the advancement of the shield machine 1, the discharge end of the rear matching belt conveyor 11 is always connected to the feed end of the telescopic belt conveyor. .

The telescopic belt conveyor is based on the ordinary belt conveyor and adds a telescopic mechanism, so that the belt conveyor can freely expand and contract in the length direction. The telescopic belt conveyor is mainly composed of a frame, a conveyor belt, a driving device, a tensioning device and a roller device. The driving device is used to provide driving force for the belt, and the tensioning device is used to adjust the tension according to the tension of the conveyor belt. To keep the conveyor belt in a reasonable working condition, the roller device is used to support and guide the conveyor belt while carrying it, and the frame is used to carry the above components and provide support. The head of the telescopic belt conveyor is the fixed end, and the tail of the telescopic belt conveyor is the movable end. By applying force to the tail of the telescopic belt conveyor, the length of the telescopic belt conveyor can be adjusted. The tail of the telescopic belt conveyor is fixedly connected to the tail trolley of the shield machine 1, and the head of the telescopic belt conveyor is fixedly installed at the tunnel opening. The conveying direction of the telescopic belt conveyor is from the tail to the head, and the telescopic belt conveys from the tail to the head. The feed end of the machine is located at the tail of the telescopic belt conveyor, and the discharge end of the telescopic belt conveyor is located at the head of the telescopic belt conveyor. When the tail trolley of the shield machine 1 is traveling, it exerts a pulling force on the tail of the telescopic belt conveyor to extend the telescopic belt conveyor to ensure that when the shield machine 1 is traveling, the rear matching belt The discharge end of the machine 11 is always connected to the feed end of the telescopic belt conveyor.

In the early stage of tunnel excavation, the space at the bottom of the working shaft is limited, so only a telescopic belt conveyor with a short length and a relatively simple structure can be arranged. When the shield machine 1 excavates a longer tunnel, as shown in Figure 5 , there is enough space in the tunnel to arrange a longer telescopic belt conveyor to adapt to the slag transportation needs of long tunnel excavation.

In order to adapt to this engineering stage, in one embodiment of the present invention, the telescopic belt conveyor includes a tape storage component. Referring to Figures 6 to 9, the tape storage component includes a tape storage bin frame 21 and a redirection unit 22. , the sliding tensioning unit 23 and the tensioning drive unit 24, wherein the tape storage frame 21 is horizontally disposed in the tunnel excavated by the shield machine 1, and the redirection unit 22 is fixedly disposed at the tunnel. The sliding tensioning unit 23 is disposed opposite to the redirection unit 22 at the first end of the tape storage bin frame 21, and is slidably disposed at the second end of the tape storage bin frame 21, so The tensioning drive unit 24 is connected to the sliding tensioning unit 23 through a steel wire rope 243. The tensioning driving unit 24 is used to drive the sliding tensioning unit 23 to reciprocate on the tape storage frame 21 , the redirection unit 22 and the sliding tensioning unit 23 are each provided with a number of redirection rollers, and the conveyor belt of the telescopic belt conveyor is wound around the redirection rollers in turn.

Referring to Figure 8, the redirection unit 22 includes a first frame body 221 and a first redirection roller 222. The first frame body 221 is fixedly connected to the tape storage frame body 21. Multiple sets of first redirection rollers 222 are longitudinally arranged on the first On the frame body 221, the first frame body 221 is also provided with a first side blocking roller and a first supporting roller, and the conveyor belts on the upper and lower sides of each first redirecting roller 222 are passed through the corresponding first side blocking roller and the first supporting roller. Between one roller to prevent the conveyor belt from sagging and deflecting.

Referring to Figure 9, the sliding tensioning unit 23 includes a second frame body 231 and a second redirecting roller 232. The bottom of the second frame body 231 is provided with rollers. Multiple sets of second redirecting rollers 232 are arranged longitudinally on the second frame body. 231, the second frame body 231 is also provided with a second side blocking roller and a second supporting roller, and the conveyor belts on the upper and lower sides of each second redirecting roller 232 are passed through the corresponding second side blocking roller and the second supporting roller. between the rollers to prevent the conveyor belt from sagging and deflecting.

Based on the above structure, the conveyor belt of the telescopic belt conveyor is wound in an S-shape on the redirecting rollers of the redirecting unit 22 and the sliding tensioning unit 23 in sequence, and is finally led out from the uppermost redirecting roller and connected to the rear supporting belt. machine 11 and the vertical belt conveyor 3.

Referring to Figure 10, the tensioning drive unit 24 includes a drum 241 and a driving device 242. The drum 241 is coiled with a steel wire rope 243, and the movable end of the steel wire rope 243 is connected to the second frame 231 of the sliding tensioning unit 23.

The belt unwinding process of the telescopic belt conveyor in this embodiment is as follows: at the beginning, the tension driving device 242 pulls the second frame 231 to ensure that the conveyor belt has a certain tension. When the tail of the telescopic belt conveyor follows the shield machine When 1 moves forward, the tension of the conveyor belt increases, pulling the second frame body 231 to move toward the first frame body 221 to realize the belt release.

Of course, after the tape unwinding length of the telescopic belt conveyor reaches the maximum, the tape needs to be retracted. In order to realize the tape retracting function of the telescopic belt conveyor, the tape storage assembly also includes a tape pulling unit 25, and the tape pulling unit 25 includes a third The frame body 251, the third roller and the traveling driving part 252. The third frame body 251 is slidably arranged on the belt storage frame body 21. Multiple sets of third rollers are longitudinally distributed on the third frame body 251 in sequence, and the conveyor belt moves from The gaps between adjacent rollers pass through to ensure that the coiled multi-layer conveyor belts can remain level and avoid sagging. The walking driving part 252 is arranged on the third frame body 251 and drives the third frame body 251 to reciprocate on the tape storage bin. The bottom of the third frame body 251 is provided with rollers, and the rollers run on the track of the tape storage bin frame body 21 superior.

When storing the belt, the traveling driving part 252 drives the third frame body 251 to move in a direction away from the first bracket, and pulls the conveyor belt for recovery.

Since the shield machine 1 needs to unwind the tape while it is traveling, it is necessary to detect its formation and the tension of the conveyor belt, and then adjust the speed of tape unwinding and tape storage. Therefore, the tape storage component also includes a tension sensor and a travel switch. The tension sensor is used to detect the tension of the conveyor belt, and the travel switch is used to detect the position of the sliding tensioning unit 23. When the tail of the telescopic belt conveyor moves forward with the shield machine 1, the tension of the conveyor belt increases, and the tension sensor detects the signal and transmits the signal to the control system. After receiving the signal, the control system controls the tensioning drive unit 24 to loosen the wire rope 243 , the second frame body 231 moves toward the first frame body 221 to realize the tape releasing function.

Further, referring to Figure 1, the underground engineering slag discharging system 100 also includes a slag conveyor belt conveyor 5. The slag conveyor belt conveyor 5 is provided between the horizontal belt conveyor 2 and the vertical belt conveyor 3 for Transfer the soil from the horizontal belt conveyor 2 to the vertical belt conveyor 3 .

The discharge end of the horizontal belt conveyor 2 is connected with the feed end of the slag conveyor 5, and the discharge end of the slag conveyor 5 is connected with the feed end of the vertical belt conveyor 3. Thus, the horizontal belt conveyor 2 outputs The slag falls into the slag conveyor 5, and is then transferred to the vertical belt conveyor 3 through the slag conveyor 5.

In a double tunnel excavation project, in order to speed up the project construction period, two shield machines 1 can be set up to carry out simultaneous excavation of the double tunnels. The two shield machines 1 are the first shield machine and the second shield machine respectively. machine, correspondingly, the horizontal belt conveyor 2 is provided with two units, namely a first horizontal belt conveyor 26 and a second horizontal belt conveyor 27. The first horizontal belt conveyor 26 is connected to the first shield machine, The second horizontal belt conveyor 27 is connected to the second shield machine, and the slag turning belt conveyor 5 includes a first slag turning feed end, a second slag turning feed end and a slag turning discharge end, wherein, The first slag turning feed end is connected to the discharge end of the first horizontal belt conveyor 26, and the second slag turning feed end is connected to the discharge end of the first horizontal belt conveyor 26. The first slag turning feed end and the second slag turning feed end meet at the slag turning discharge end, and the slag turning discharge end is connected to the feed end of the vertical belt conveyor 3 .

Referring to Figure 3, the vertical belt conveyor 3 includes a horizontal loading section 31, a horizontal discharging section 32 and a vertical lifting section 33. The horizontal loading section 31 is installed on the tunnel floor, and the horizontal discharging section 32 is installed on the working surface. On the well surface, the vertical lifting section 33 is installed on the side wall of the working shaft and connects the horizontal feeding section 31 and the horizontal discharging section 32; wherein, the discharging end of the slag conveyor 5 It is located above the horizontal loading section 31 so that the slag output from the discharge end of the slag conveyor 5 falls into the horizontal loading section 31 under the action of gravity.

The height of the vertical lifting section 33 is at least 70 meters, which is suitable for excavation projects of deeper tunnels.

The slag-turning belt conveyor 5 also includes a slag-turning hopper 51. The slag-turning hopper 51 is provided between the discharge end of the slag-turning belt conveyor 5 and the horizontal feeding section 31 of the vertical belt conveyor 3. The slag output from the discharge end of the slag rotating belt conveyor 5 passes through the slag rotating hopper 51 and falls into the horizontal feeding section 31 .

It should be noted that the underground engineering slag discharging system 100 of the present invention also includes a slag truck. The slag truck is loaded with a slag box. The slag truck is waiting below the horizontal discharging section 32 of the vertical belt conveyor 3 for receiving the slag from the vertical belt conveyor 3. The horizontal discharging section 32 of the vertical belt conveyor 3 outputs the muck. When the muck box is full, the muck truck drives to the muck pit to dump the muck. There are several muck trucks, and several muck trucks operate in sequence to achieve continuous dumping of muck.

Of course, in some embodiments, a continuous belt conveyor can also be provided between the horizontal discharge end of the vertical belt conveyor 3 and the slag pit, and the feed end of the continuous belt conveyor is connected to the discharge end of the vertical belt conveyor 3. The discharge end of the continuous belt conveyor extends to the muck pit. Therefore, the muck output from the vertical belt conveyor 3 can be directly transported to the muck pit through the continuous belt conveyor. The muck can be transported by the belt conveyor throughout the entire process, improving underground engineering. The slag discharging system has 100% continuity, further speeding up the slag discharging efficiency.

The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Under the inventive concept of the present invention, equivalent structural transformations can be made using the contents of the description and drawings of the present invention, or direct/indirect applications. Other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. An underground engineering slag discharging system, which is characterized by including: A shield machine, which includes a rear supporting belt conveyor; Horizontal belt conveyor, the horizontal belt conveyor is located behind the rear supporting belt conveyor and is continuously connected to the rear supporting belt conveyor, and is used to transfer the muck output by the rear supporting belt conveyor to the tunnel entrance; Vertical belt conveyor, the vertical belt conveyor is located in the working well of the tunnel entrance and is continuously connected to the horizontal belt conveyor. The vertical belt conveyor is used to receive the slag output by the horizontal belt conveyor to remove the slag. Lift to the surface of the working shaft. 2. The underground engineering slag discharging system according to claim 1, characterized in that the height of the discharge end of the rear matching belt conveyor is higher than the height of the feed end of the horizontal belt conveyor, and the height of the rear supporting belt conveyor is higher than the height of the feed end of the horizontal belt conveyor. A discharge bin is provided between the matching belt conveyor and the horizontal belt conveyor. A discharge port is provided at the bottom of the discharge bin. The discharge port is directly opposite the feed end of the horizontal belt conveyor. The rear The muck output by the matching belt conveyor passes through the discharge port and falls into the feed end of the horizontal belt conveyor. 3. The underground engineering slag discharging system according to claim 1, characterized in that the horizontal belt conveyor includes a telescopic belt conveyor, and the tail of the telescopic belt conveyor is fixedly connected to the tail trolley of the shield machine, so The tail of the telescopic belt conveyor advances with the advancement of the tail trolley of the shield machine to ensure that during the advancement of the shield machine, the discharge end of the rear supporting belt conveyor is in contact with the telescopic belt conveyor. The feed ends are always connected. 4. The underground engineering slag discharging system according to claim 3, characterized in that the telescopic belt conveyor includes a tape storage component, and the tape storage component includes: A tape storage warehouse frame body, which is horizontally arranged in the tunnel excavated by the shield machine; A redirection unit, which is fixedly installed on the first end of the tape storage bin frame, A sliding tensioning unit, which is arranged opposite to the redirection unit and is slidingly arranged on the second end of the tape storage frame; A tensioning drive unit is connected to the sliding tensioning unit through a wire rope. The tensioning driving unit is used to drive the sliding tensioning unit to reciprocate on the tape storage frame. ; Wherein, the redirection unit and the sliding tensioning unit are each provided with a plurality of redirection rollers, and the conveyor belt of the telescopic belt conveyor is wound around the redirection rollers in sequence. 5. The underground engineering slag discharging system according to claim 1, characterized in that, a plurality of hoppers arranged at intervals are provided on the conveyor surface of the conveyor belt of the vertical belt conveyor, and the hoppers are used to receive the slag from all the slags. The above-mentioned horizontal belt conveyor outputs the muck. 6. The underground engineering slag discharging system according to any one of claims 1 to 5, characterized in that the underground engineering slag discharging system further includes a slag turning belt conveyor, and the slag turning belt conveyor is located on the horizontal belt. Between the machine and the vertical belt conveyor, it is used to transfer the slag from the horizontal belt conveyor to the vertical belt conveyor. 7. The underground engineering slag discharging system according to claim 6, characterized in that the shield machine is provided with two units, namely a first shield machine and a second shield machine, and the horizontal belt conveyor is provided with Two units, namely a first horizontal belt conveyor and a second horizontal belt conveyor, the first horizontal belt conveyor is connected to the first shield machine, and the second horizontal belt conveyor is connected to the second shield machine ; The slag turning belt conveyor includes a first slag turning feed end, a second slag turning feed end and a slag turning discharge end, wherein the first slag turning feed end is connected with the outlet of the first horizontal belt conveyor. The material end is connected, the second slag turning feed end is connected to the discharge end of the first horizontal belt conveyor, the first slag turning feed end and the second slag turning feed end meet at the The slag turning discharge end is connected with the feed end of the vertical belt conveyor. 8. The underground engineering slag discharging system according to claim 6, characterized in that the vertical belt conveyor includes: A horizontal loading section, which is installed on the tunnel floor; a horizontal discharging section, which is installed on the ground of the working shaft; and A vertical lifting section, which is installed on the side wall of the working shaft and connects the horizontal feeding section and the horizontal discharging section; Wherein, the discharging end of the slag rotating belt conveyor is located above the horizontal loading section, so that the slag output from the discharging end of the slag rotating belt conveyor falls into the horizontal feeding section under the action of gravity. part. 9. The underground engineering slag discharging system according to claim 8, characterized in that the height of the vertical lifting section is at least seventy meters. 10. The underground engineering slag discharging system according to claim 8, characterized in that the slag turning belt conveyor further includes a slag turning hopper, and the slag turning hopper is disposed between the discharging end of the slag turning belt conveyor and the slag turning belt conveyor. Between the horizontal feeding sections of the vertical belt conveyor, the muck output from the discharging end of the slag rotating belt conveyor passes through the slag rotating hopper and falls into the horizontal feeding section.