A full-face tunneling machine and a slag discharging system thereof

Abstract

The application relates to a full-face tunneling machine and a slag discharging system thereof, which comprises a main machine belt conveyor, a rear matched belt conveyor and a slag discharging device arranged between the main machine belt conveyor and the rear matched belt conveyor, and the main machine belt conveyor and the rear matched belt conveyor share a conveying belt; the slag discharging device comprises a buffer bed, a first turning roller and a second turning roller which are arranged at the sides of the buffer bed respectively; the conveying belt passes through the main machine belt conveyor, the first turning roller, the buffer bed, the rear matched belt conveyor, and then passes through the buffer bed and the second turning roller to the main machine belt conveyor to form an upper belt and a lower belt; the cut slag is dropped onto the upper belt on the buffer bed after being conveyed by the main machine belt conveyor, and then is conveyed outward by the rear matched belt conveyor. The conveying belts used by the main machine belt conveyor and the rear matched belt conveyor are combined into one, the conveying belt is more convenient to replace, the transition wear of the conveying belt used by the main machine belt conveyor can be avoided, and the use efficiency of the conveying belt is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of tunneling equipment technology, specifically to a full-face tunneling machine and its muck removal system. Background Technology

[0002] In existing full-face hard rock tunnel boring machines (TBMs) with sunken main beams (also known as Z-shaped main beams, which are a type of single main beam structure), the main methods for removing slag are scraper conveyors or two conveyor belts (i.e., one conveyor belt on the main conveyor and one conveyor belt on the auxiliary conveyor). However, when using scraper conveyors, the limitations of the tube sheet chain structure and the confined space of the sunken main beam structure easily lead to slag jamming, causing the scraper conveyor to stop and affecting slag removal efficiency. When using two conveyor belts, the short length of the main conveyor belt easily leads to slag spillage and belt wear. In addition, the limitations of the sunken main beam structure make it difficult to clean the slag out of the main beam, and it is also difficult for personnel to replace the belts in the confined space. Summary of the Invention

[0003] In view of this, the present invention provides a slag removal system for a full-face tunneling machine, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0004] The second objective of this invention is to provide a full-face tunneling machine.

[0005] To achieve the aforementioned objectives, the technical solution adopted by the present invention is as follows:

[0006] A muck removal system for a full-face tunneling machine, the full-face tunneling machine including a main beam, the muck removal system including a main conveyor belt and a rear auxiliary conveyor belt arranged in sequence, the main conveyor belt being movable within the main beam along the length direction of the main beam, and the main conveyor belt and the rear auxiliary conveyor belt sharing a single conveyor belt;

[0007] The slag discharge system also includes a slag discharge device disposed between the main conveyor belt and the downstream supporting conveyor belt. The slag discharge device includes a buffer bed disposed below the main conveyor belt, and a first deflector roller and a second deflector roller disposed on the side of the buffer bed.

[0008] The conveyor belt passes through the main conveyor belt, the first redirecting roller, the buffer bed, and the rear matching conveyor belt, and then passes through the buffer bed and the second redirecting roller to the main conveyor belt to form an upper belt and a lower belt. The upper belt, the buffer bed, and the lower belt are distributed from top to bottom.

[0009] The cut slag is conveyed by the upper belt of the main conveyor belt and falls onto the upper belt of the buffer bed, and then conveyed outward by the rear supporting conveyor belt.

[0010] In the slag removal system for a full-face tunneling machine as described above, optionally, the main conveyor belt includes a first unloading drum and a third redirecting drum located below the first unloading drum. The upper conveyor belt passes sequentially through the first unloading drum, the first redirecting drum, and the buffer bed; the lower conveyor belt passes sequentially through the buffer bed and the second redirecting drum, and then is redirected by the third redirecting drum.

[0011] The main conveyor belt has a discharge working state and a retraction working state. When the main conveyor belt switches between the discharge working state and the retraction working state, the distance between the upper belt between the first discharge roller and the first redirecting roller and the lower belt between the second redirecting roller and the third redirecting roller will change.

[0012] Optionally, the distance decreases when switching from the unloading state to the retraction state.

[0013] Further optionally, the slag discharge device further includes a separation and redirection roller disposed on the side of the buffer bed, the separation and redirection roller being used to separate the upper conveyor belt between the first discharge roller and the first redirection roller from the lower conveyor belt between the second redirection roller and the third redirection roller.

[0014] Alternatively, the separation redirecting roller is disposed to the side of the first redirecting roller and located between the second and third redirecting rollers.

[0015] Further optionally, the two ends of the separation redirection roller are respectively connected to opposite sides of the main beam via a connecting assembly;

[0016] Each of the connecting components includes a base plate, a support frame fixedly mounted on the base plate, a bearing seat fixedly mounted on the support frame, and a bearing mounted in the bearing seat. The two ends of the separating and redirecting roller are respectively connected to the bearings of the connecting components on both sides.

[0017] Further optionally, when the main conveyor belt switches from the unloading working state to the retraction working state, the first unloading roller and the third redirecting roller move toward the rear-mounted conveyor belt.

[0018] In the muck removal system for a full-face tunneling machine as described above, the muck removal device may optionally include a mounting frame, on which the second redirecting roller, the first redirecting roller, and the buffer bed are sequentially mounted;

[0019] The buffer bed includes a plurality of buffer bars spaced apart along the width direction of the conveyor belt. Each buffer bar extends along the length direction of the conveyor belt. The plurality of buffer bars located on the outer side are inclined from bottom to top from the direction close to the first redirecting roller to the direction away from the first redirecting roller, so that the end of the buffer bed away from the first redirecting roller has a groove-shaped end.

[0020] Optionally, the slag discharge device further includes receiving hopper assemblies respectively disposed on the mounting frame and located on the left and right sides of the buffer bed. Each receiving hopper assembly includes a receiving buffer plate, and each receiving buffer plate is inclined in the vertical direction, such that the distance between the lower parts of the receiving buffer plates on both sides is less than the distance between the upper parts of the receiving buffer plates on both sides, and the upper layer of tape located above the buffer bed is pressed between the receiving buffer plates on both sides and the buffer rod.

[0021] The second technical solution adopted by the present invention is: a full-face tunneling machine, including a main beam, a main drive disposed at the front end of the main beam and a cutterhead rotatably connected to the front end of the main drive, and the full-face tunneling machine also includes the above-mentioned muck removal system.

[0022] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

[0023] The slag discharge system of this invention combines the conveyor belts used by the main conveyor belt and the downstream supporting conveyor belt into one, making the replacement of the conveyor belt more convenient. At the same time, it can avoid excessive wear of the conveyor belt used by the main conveyor belt, greatly improving the efficiency of the conveyor belt and the slag discharge efficiency.

[0024] The main conveyor belt of the slag discharge system of this invention operates more stably, greatly improving the problem of material spillage. Attached Figure Description

[0025] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention.

[0026] Figure 1 This is a schematic diagram of the slag discharge system according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A (conveyor belt not shown);

[0028] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0029] Figure 4 This is a schematic diagram of the main conveyor belt and slag discharge device in an embodiment of the present invention (the main conveyor belt is in the unloading working state).

[0030] Figure 5 for Figure 4 A schematic diagram of the main belt conveyor in the retracted working state;

[0031] Figure 6 for Figure 4 A schematic diagram of the slag discharge device in the middle;

[0032] Figure 7 for Figure 4 A schematic diagram of the separation redirection roller and connecting assembly of the slag discharge device;

[0033] Figure 8 for Figure 4 A schematic diagram of the mounting frame for the slag discharge device;

[0034] Figure 9 for Figure 4 A schematic diagram of the buffer bed structure of the slag discharge device in the middle;

[0035] Figure 10 for Figure 4 A schematic diagram of the hopper assembly of the slag discharge device in the middle;

[0036] Figure 11 A schematic diagram of the structure of the return roller connector for the slag discharge return idler;

[0037] In the picture:

[0038] 100. Main beam; 200. Main conveyor belt; 300. Rear auxiliary conveyor belt; 400. Slag discharge device; 500. Conveyor belt;

[0039] 1. Buffer bed; 101. Buffer rod; 102. Buffer bed support; 2. First redirecting roller; 3. Second redirecting roller; 4. First unloading roller; 5. Third redirecting roller; 6. Separating redirecting roller; 7. Connecting assembly; 701. Base plate; 702. Support frame; 703. Bearing seat; 8. Mounting frame; 801. Base rod; 802. Vertical rod; 803. Redirecting roller support frame; 804. Crossbar; 9. Receiving hopper assembly; 901. Receiving... 902. Material buffer plate; 903. Receiving hopper support; 904. Pressure strip; 905. Support plate; 10. First support; 11. First return idler roller; 12. First outgoing idler roller; 13. Fourth redirecting roller; 14. Second support; 15. Second return idler roller; 16. Second outgoing idler roller; 17. Second discharge roller; 18. Tensioning device; 19. Upper conveyor belt; 20. Lower conveyor belt; 21. Slag discharge return idler roller; 22. Return roller connector. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] For any single technical feature described or implied in the embodiments submitted herein, or any single technical feature shown or implied in the various drawings, the present invention still operates in any combination or deletion among these technical features or their equivalents without any technical obstacle, and thus these further embodiments according to the present invention should also be considered within the scope of the description herein.

[0042] In the following description, the terms "front," "back," "left," "right," "up," and "down" refer to directions. Figure 1 In the figure, the left direction is "front", the right direction is "back", the top direction is "up", and the bottom direction is "down". The directions perpendicular to the paper are "left" and "right". The above definitions of directions are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0043] Figure 1 This diagram illustrates the structure of a muck removal system for a full-face tunneling machine (TBM) according to an embodiment of the present invention. Figure 1 As can be seen, the slag removal system includes a main conveyor belt 200 and a rear-mounted auxiliary conveyor belt 300 arranged sequentially. The main conveyor belt 200 can be movably installed within the main beam 100 along its length, and has two working states within the main beam 100: a discharge working state and a retraction working state. (Refer to...) Figure 4 and Figure 5 When switching from the unloading working state to the retraction working state, the main conveyor belt 200 moves towards the rear supporting conveyor belt 300, allowing the workers to enter the TBM cutterhead for operation through the main beam 100.

[0044] Traditional full-face tunneling machines use two conveyor belts to transport muck, that is, the main conveyor belt transports the muck to the rear-mounted conveyor belt. However, the main conveyor belt is relatively short, which makes it very easy for the muck to wear out and spill. In addition, the main conveyor belt is located inside the main beam, and the internal space of the main beam is small, making it very inconvenient to replace the belt.

[0045] This application combines the conveyor belt of the main conveyor and the conveyor belt of the auxiliary conveyor into one, allowing the main conveyor and the auxiliary conveyor to share a single conveyor belt 500. Furthermore, a slag discharge device is installed between the main conveyor and the auxiliary conveyor. This not only prevents excessive wear on the main conveyor belt, reduces the frequency of belt replacement, and greatly improves the efficiency of the conveyor, but also eliminates the need to enter the confined space of the main beam for belt replacement, even if replacement is required. Moreover, sharing a single conveyor belt between the main conveyor and the auxiliary conveyor also increases the operational stability of the main conveyor and significantly improves the problem of material spillage.

[0046] See also Figure 2 , Figures 4 to 6 The slag discharge device 400 includes a mounting frame 8 disposed below the main conveyor belt 200, a buffer bed 1 disposed on the mounting frame 8 and located below the main conveyor belt 200, and a first redirecting roller 2 and a second modified roller 3 disposed on the mounting frame 8 and located on the buffer bed 1 near the side of the main conveyor belt. The second redirecting roller 3, the first modified roller 2, and the buffer bed 1 are arranged sequentially along the length of the conveyor belt 500. Figure 4 As shown, the conveyor belt 500 passes through the main conveyor belt 200, the first redirecting roller 2, the buffer bed 1, and the rear matching conveyor belt 300, and then passes through the buffer bed 1 and the second redirecting roller 3 to the main conveyor belt 200 to form an upper belt 19 and a lower belt 20. The distribution relationship of the upper belt and the lower belt at the corresponding position of the buffer bed 1 is that the upper belt 19, the buffer bed 1, and the lower belt 20 are distributed from top to bottom.

[0047] After being cut, the slag is conveyed by the upper belt of the main conveyor belt 200 and falls onto the upper belt of the buffer bed 1, and then is conveyed outward by the upper belt of the rear supporting conveyor belt.

[0048] See also Figure 2 The main conveyor belt 200 includes a first support 10 movably disposed within the main beam 100 along the length of the main beam 100, a first discharge roller 4 and a third redirecting roller 5 disposed on the first support 10 near the end of the slag discharge device 400, a fourth redirecting roller 13 disposed on the first support 10 away from the end of the slag discharge device 400, a plurality of first outgoing idlers 12 disposed between the fourth redirecting roller 13 and the first discharge roller 4, and a plurality of first return idlers 11 disposed between the fourth redirecting roller 13 and the third redirecting roller 5. The first return idlers 11 are located below the first outgoing idlers 12. The upper conveyor belt 19 passes sequentially through the first outgoing idlers 12, the first discharge roller 4, the first redirecting roller 2, and the buffer bed 1; the lower conveyor belt 20 passes sequentially through the buffer bed 1, the second redirecting roller 3, and the first return idlers 11, and then is redirected by the third redirecting roller 5.

[0049] See also Figure 1 and Figure 3 The rear-mounted belt conveyor 300 includes a second support 14, a second discharge roller 17 disposed at the end of the second support 14 away from the slag discharge device 400, a plurality of second outgoing idlers 16 disposed between the buffer bed 1 and the second discharge roller 17, a plurality of second return idlers 15 disposed between the second discharge roller 17 and the buffer bed 1, and a tensioning device 18 disposed between the second return idlers 15 and the second discharge roller 17, wherein the second return idlers 15 are located below the second outgoing idlers 16.

[0050] It is understood that the tensioning device 18 is used to adjust the tension of the conveyor belt 500, and it can adopt the structure of existing tensioning devices, which will not be described in detail here.

[0051] In some embodiments, the second outgoing idler 16 may be a trough idler, and the first outgoing idler 12 may also be a trough idler.

[0052] The conveyor belt 500 travels in the slag discharge system in the following directions: the upper belt 19 passes sequentially through the first outgoing idler 12, the first discharge roller 4, the first redirecting roller 2, the buffer bed 1, and the second outgoing idler 16, and then is redirected by the second discharge roller 17; the lower belt 20 formed after being redirected by the second discharge roller 17 passes sequentially through the tensioning device 18, the second return idler 15, the buffer bed 1, the second redirecting roller 3, the third redirecting roller 5, and the first return idler 11, and then is redirected by the fourth redirecting roller 13.

[0053] See also Figure 4 and Figure 5 When the main conveyor belt 200 switches between the unloading working state and the retraction working state, the distance between the upper belt 19 between the first unloading roller 4 and the first redirecting roller 2 and the lower belt 20 between the second redirecting roller 3 and the third redirecting roller 5 will change. For example, when the main conveyor belt switches from the unloading working state ( Figure 4 Switching to retracted working state ( Figure 5 When the first unloading roller 4 and the third redirecting roller 5 move toward the direction of the rear-mounted belt conveyor, the distance between the upper belt 19 between the first unloading roller 4 and the first redirecting roller 2 and the lower belt 20 between the second redirecting roller 3 and the third redirecting roller 5 will become smaller.

[0054] To prevent the upper and lower belts from interfering and wearing each other when the main conveyor belt 200 is in the retracted working state, the slag discharge device 400 also includes a separation and redirection roller 6 disposed on the side of the buffer bed 1 near the main conveyor belt 200. The separation and redirection roller 6 is used to separate the upper belt 19 between the first discharge roller 4 and the first redirection roller 2 from the lower belt 20 between the second redirection roller 3 and the third redirection roller 5.

[0055] In an optional embodiment, the separation redirecting roller 6 is disposed on the side of the first redirecting roller 2 and located between the second redirecting roller 3 and the third redirecting roller 5, and the two ends of the separation redirecting roller 6 are connected to the opposite sides of the main beam 100 by a connecting assembly.

[0056] In some embodiments, see Figure 7 Each side connection assembly 7 includes a base plate 701, a support frame 702 fixedly mounted on the base plate 701, a bearing seat 703 fixedly mounted on the support frame 702, and a bearing disposed within the bearing seat 703. The two ends of the separation redirecting roller 6 are respectively connected to the bearings of the two side connection assemblies 7. The base plate 701 and support frame 702 of each side connection assembly are fixedly connected to the main beam by bolts.

[0057] In some embodiments, see Figure 8 The mounting frame 8 includes a base rod 801 that is disposed on the left and right sides of the conveyor belt and extends along the length of the conveyor belt, upright rods 802 that are respectively disposed at both ends of the base rod 801, a redirecting roller support frame 803 disposed on the upright rod 802 near the main conveyor belt, and a plurality of cross rods 804 connecting the base rods and upright rods on both sides.

[0058] See also Figure 9 The buffer bed 1 includes a buffer bed support 102 and a plurality of buffer rods 101 disposed on the buffer bed support 102. The plurality of buffer rods 101 are spaced apart along the width direction of the conveying belt, and each buffer rod 101 extends along the length direction of the conveying belt. The plurality of buffer rods 101 located on the two outer sides are inclined from bottom to top from the direction near the first deflector roller 2 to the direction away from the first deflector roller 2, and the buffer rod 101 located in the middle is arranged horizontally, so that the end of the buffer bed 1 away from the first deflector roller 2 is a groove-shaped end, thereby making the conveying surface of the upper layer of the belt on the buffer bed transition from a plane to a groove shape.

[0059] The buffer bed bracket 102 is fixedly connected to the bottom rods 801 on both sides of the mounting frame 8 by bolts. The first redirecting roller 2 and the second redirecting roller 3 are installed on the redirecting roller support frame 803 of the mounting frame 8, and the bottom of the mounting frame 8 is welded to the main beam 100. In this way, the entire mounting frame can better withstand the reaction force of the first redirecting roller 2 and the second redirecting roller 3 and the impact load when the first unloading roller 4 unloads material.

[0060] The slag discharge device 400 also includes receiving hopper assemblies 9, which are respectively installed on the mounting frame 8 and located on the left and right sides of the buffer bed 1.

[0061] See Figure 10Each side receiving hopper assembly 9 includes a receiving hopper bracket 902, a support plate 904 fixedly mounted on the receiving hopper bracket 902, a receiving buffer plate 901, and a pressure strip 903. If the support plate 904 is a metal plate, it is inclined vertically, such that the distance between the lower parts of the two side support plates 904 is less than the distance between the upper parts of the two side support plates 904. The two side support plates 904 support the receiving buffer plate 901, and the lower part of the receiving buffer plate 901 extends beyond the lower part of the support plate 904, such that the lower end of the receiving buffer plate 901 is lower than the lower end of the support plate 904. If the receiving buffer plate 901 is a rubber plate, it is also inclined vertically. The receiving buffer plate 901 is fixed between the pressure strip 903 and the support plate 904 by bolts; the distance between the lower parts of the receiving buffer plates 901 on both sides is less than the distance between the upper parts of the receiving buffer plates 901 on both sides. The upper layer of conveyor belt above the buffer bed 1 is pressed between the receiving buffer plates 901 on both sides and the buffer rod 101. The receiving buffer plates 901 on both sides gather the gangue unloaded by the first unloading roller 4 onto the upper layer of conveyor belt on the buffer bed. The buffer bed can greatly alleviate the large impact force on the conveyor belt caused by the high drop between the first unloading roller 4 and the buffer bed. Since the gangue has sharp edges and is easy to damage the conveyor belt, the buffer bed greatly improves the service life of the conveyor belt.

[0062] See also Figure 6 The slag discharge device also includes a plurality of slag discharge return idlers 21 spaced apart on the mounting frame 8 along the length of the conveyor belt. The slag discharge return idlers 21 are connected to the base rod 801 of the mounting frame 8 via return roller connectors 22. See [reference needed] Figure 11 The return roller connector 22 is recessed in the middle to form a groove, and the end of the slag return roller 21 is set in the groove. The return roller connector 22 is fixedly connected to the mounting frame by bolts.

[0063] Without illustration, this embodiment of the invention also provides a full-face tunneling machine, including a main beam, a main drive disposed at the front end of the main beam, a cutterhead rotatably connected to the front end of the main drive, and the aforementioned muck removal system. The main machine belt conveyor is movably disposed within the main beam along the length direction of the main beam, and the muck removal device mounting frame is fixedly disposed within the main beam.

[0064] The gangue slag cut by the cutter head is conveyed by the main conveyor belt and discharged by the first discharge roller onto the upper belt of the buffer bed. It is then conveyed outward by the rear matching conveyor belt. The gangue slag is conveyed through the same conveyor belt, which ensures stable slag conveying and greatly improves the problem of material falling and spilling.

[0065] The above embodiments are only used to illustrate the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the patent protection scope of the embodiments of the present invention should be defined by the claims.

Claims

1. A muck removal system for a full-face tunneling machine, the full-face tunneling machine comprising a main beam, characterized in that, The slag discharge system includes a main belt conveyor and a rear supporting belt conveyor arranged in sequence. The main belt conveyor can be movably arranged inside the main beam along the length direction of the main beam, and the main belt conveyor and the rear supporting belt conveyor share a single conveyor belt. The slag discharge system also includes a slag discharge device disposed between the main conveyor belt and the downstream supporting conveyor belt. The slag discharge device includes a buffer bed disposed below the main conveyor belt, and a first deflector roller and a second deflector roller disposed on the side of the buffer bed. The conveyor belt passes through the main conveyor belt, the first redirecting roller, the buffer bed, and the rear matching conveyor belt, and then passes through the buffer bed and the second redirecting roller to the main conveyor belt to form an upper belt and a lower belt. The upper belt, the buffer bed, and the lower belt are distributed from top to bottom. The cut slag is conveyed by the upper belt of the main conveyor belt and falls onto the upper belt of the buffer bed, and then conveyed outward by the rear supporting conveyor belt.

2. The muck removal system for a full-face tunneling machine according to claim 1, characterized in that, The main conveyor belt includes a first discharge roller and a third redirecting roller located below the first discharge roller. The upper conveyor belt passes sequentially through the first discharge roller, the first redirecting roller, and the buffer bed; the lower conveyor belt passes sequentially through the buffer bed and the second redirecting roller, and then is redirected by the third redirecting roller. The main conveyor belt has a discharge working state and a retraction working state. When the main conveyor belt switches between the discharge working state and the retraction working state, the distance between the upper belt between the first discharge roller and the first redirecting roller and the lower belt between the second redirecting roller and the third redirecting roller will change.

3. The muck removal system for a full-face tunneling machine according to claim 2, characterized in that, The distance decreases when switching from the unloading state to the retraction state.

4. The muck removal system for a full-face tunneling machine according to claim 3, characterized in that, The slag discharge device further includes a separation and redirection roller disposed on the side of the buffer bed. The separation and redirection roller is used to separate the upper conveyor belt between the first discharge roller and the first redirection roller from the lower conveyor belt between the second redirection roller and the third redirection roller.

5. The muck removal system for a full-face tunneling machine according to claim 4, characterized in that, The separation redirecting roller is disposed to the side of the first redirecting roller and located between the second redirecting roller and the third redirecting roller.

6. The muck removal system for a full-face tunneling machine according to claim 3, characterized in that, The two ends of the separation and redirection roller are respectively connected to the opposite sides of the main beam via connecting components; Each of the connecting components includes a base plate, a support frame fixedly mounted on the base plate, a bearing seat fixedly mounted on the support frame, and a bearing mounted in the bearing seat. The two ends of the separating and redirecting roller are respectively connected to the bearings of the connecting components on both sides.

7. The muck removal system for a full-face tunneling machine according to claim 2, characterized in that, When the main conveyor belt switches from the unloading working state to the retraction working state, the first unloading roller and the third redirecting roller move toward the rear-mounted conveyor belt.

8. The muck removal system for a full-face tunneling machine according to claim 1, characterized in that, The slag discharge device also includes a mounting frame, on which the second redirecting roller, the first redirecting roller, and the buffer bed are sequentially arranged; The buffer bed includes a plurality of buffer bars spaced apart along the width direction of the conveyor belt. Each buffer bar extends along the length direction of the conveyor belt. The plurality of buffer bars located on the outer side are inclined from bottom to top from the direction close to the first redirecting roller to the direction away from the first redirecting roller, so that the end of the buffer bed away from the first redirecting roller has a groove-shaped end.

9. The muck removal system for a full-face tunneling machine according to claim 8, characterized in that, The slag discharge device also includes receiving hopper assemblies respectively disposed on the mounting frame and located on the left and right sides of the buffer bed. Each receiving hopper assembly includes a receiving buffer plate. Each receiving buffer plate is inclined in the vertical direction, such that the distance between the lower parts of the receiving buffer plates on both sides is less than the distance between the upper parts of the receiving buffer plates on both sides, and the upper layer of tape located above the buffer bed is pressed between the receiving buffer plates and the buffer rod on both sides.

10. A full-face tunneling machine, comprising a main beam, a main drive disposed at the front end of the main beam, and a cutterhead rotatably connected to the front end of the main drive, characterized in that, The full-face tunneling machine also includes the slag removal system as described in any one of claims 1 to 9.

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