Rail-mounted slag discarding device based on subway tunnel shield method construction

Abstract

The invention relates to the technical field of muck treatment devices, in particular to a rail-mounted muck discarding device based on subway tunnel shield method construction, which comprises a movable rail car moving on a fixed rail, a plurality of muck transportation devices arranged on the movable rail car and a muck treatment bin arranged on the outer side of the end part of the fixed rail. According to the rail-mounted slag discarding device based on subway tunnel shield method construction, after a slag transportation device moves into a slag treatment bin under transportation of a movable rail car, shaft end gears in one set of butt joint parts can rotate after making contact with a bin wall toothed plate, so that a discharging auger is driven to rotate, and the slag treatment bin is opened; according to the automatic residue discharging mechanism, the traditional manual cleaning process is optimized, the time required for discharging the residue soil is remarkably shortened, and the safety risk possibly caused when the gantry crane is used for moving the residue soil receiving bin up and down is fundamentally eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of slag processing devices, and in particular to a track-mounted slag disposal device based on shield construction of a subway tunnel. Background Art

[0002] The track-mounted slag disposal device plays a vital role in the shield construction of subway tunnels. With the help of laid tracks, it travels stably and quickly in the tunnel, and efficiently transports the slag generated during the excavation process away from the site. This device not only improves the efficiency of slag treatment, but also effectively ensures the smooth progress of construction. Its strong load-bearing capacity and stable structural design ensure the safety and stability of the construction environment.

[0003] The patent with publication number CN220430313U discloses a shield-type rare earth transfer vehicle, including a vehicle body and a carriage arranged on the vehicle body, the carriage is an upper opening and a rear opening structure, and a feed cover is provided at the upper opening of the carriage, a feed channel for feeding is provided at the middle position of the feed cover, a box door is rotatably provided at the rear of the carriage, the box door is provided with a sealing portion that is plugged into the side opening of the carriage, and the carriage is provided with fasteners for covering the box door on the carriage. This application effectively reduces the environmental pollution caused by the process of transporting rare earth.

[0004] However, traditional rail-mounted slag disposal equipment has shown many shortcomings in the slag treatment process. The traditional method often relies on a gantry crane to lift the bin loaded with slag to the surface for dumping, and then manually assists in resetting the bin to the rail trolley. This process is not only cumbersome and time-consuming, but also has potential safety risks that cannot be ignored. In addition, during the continuous transportation process, the slag is easy to adhere to the bin wall, which not only increases the difficulty of cleaning, but also increases the subsequent maintenance costs.

[0005] In view of this, we propose a track-mounted slag disposal device based on the shield construction method of subway tunnels. Summary of the invention

[0006] The object of the present invention is to provide a track-mounted slag disposal device based on the shield construction of a subway tunnel, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A rail-mounted slag disposal device based on the shield method for subway tunnel construction includes a mobile rail vehicle moving on a fixed track, a plurality of slag transportation devices arranged on the mobile rail vehicle, and a slag disposal bin arranged outside the end of the fixed track;

[0009] The slag transportation device comprises a fixed part, a movable part arranged inside the fixed part, a discharging auger arranged below the movable part, and a docking part arranged outside the left and right ends of the discharging auger in a centrally symmetrical manner;

[0010] The fixed part includes a fixed box body, a limit bin body arranged inside the fixed box body, and a slag discharge bin body arranged on the outer side walls at the left and right ends of the fixed box body;

[0011] The moving part includes a slag receiving bin and a plurality of first pressure springs arranged at the corners of the bottom surface of the slag receiving bin;

[0012] The docking part includes a rotating shaft, a ratchet wheel arranged at the inner end of the rotating shaft, an outer ring body sleeved on the outer side of the ratchet wheel, a plurality of ratchet pawls regularly arranged on the inner side of the outer ring body, and a shaft end gear arranged at the outer end of the rotating shaft;

[0013] The slag processing bin comprises a fixed outer bin, a discharge portion arranged at the outer side walls at the left and right ends of the fixed outer bin near the bottom, and a plurality of spray portions regularly arranged on the top surface of the fixed outer bin;

[0014] The fixed outer bin comprises a support base symmetrically arranged on both sides, a jacket bin body arranged at the top of the two groups of support bases, and a bin wall tooth plate arranged at the bottom end of the inner side wall of the jacket bin body;

[0015] The spray part includes a spray head, a water inlet pipe arranged at both ends of the spray head and extending into the outer casing body, a connecting frame arranged on the outer wall of the water inlet pipe, a docking roller arranged below the connecting frame, and a water blocking plate that moves with the movement of the docking roller.

[0016] In the technical solution of the present invention, the fixed box body is fixedly connected to the top surface of the mobile rail vehicle roof plate by bolts, the limiting bin body is welded and fixed to the inner wall of the fixed box body, the slag discharge bin body and the fixed box body are integrally formed, a slag discharge trough running through the left and right is provided inside the slag discharge bin body, a rotating groove is provided above the slag discharge trough, and the top cross-section of the slag discharge bin body is a hemispherical arc.

[0017] In the technical solution of the present invention, the slag receiving bin is slidably connected to the interior of the fixed box body, the longitudinal cross-section of the slag receiving bin is funnel-shaped and the bottom end of the funnel extends to the interior of the limiting bin body, the upper and lower ends of the first pressure spring are respectively welded and fixed to the bottom surface of the slag receiving bin and the inner bottom surface of the fixed box body, and a limiting telescopic rod is provided on the inner side of the first pressure spring.

[0018] In the technical solution of the present invention, the left and right ends of the rotating shaft are respectively rotatably connected to the outer wall of the slag discharge bin and the inner groove wall of the rotating groove, and the ratchet and the shaft end gear are fixedly connected to the outer wall of the rotating shaft by a bayonet pin.

[0019] In the technical solution of the present invention, the outer sleeve ring body is rotatably connected to the inside of the rotating groove, the outer sleeve ring body is clamped and fixed to the center rod of the discharging auger, and a plurality of grooves are provided on the inner ring wall of the outer sleeve ring body to provide a rotating range for the pawl.

[0020] In the technical solution of the present invention, the support base is fixedly connected to the ground in the subway tunnel by bolts, the outer jacket bin body is welded and fixed to the support base, and liquid storage bins for storing slag cleaning liquid are provided at the left and right ends of the outer jacket bin body. A plurality of regularly distributed and vertically penetrating mounting grooves are provided on the top surface of the outer jacket bin body, and the bin wall tooth plate is welded and fixed to the inner wall of the outer jacket bin body, and the bin wall tooth plate is meshed with the shaft end gear.

[0021] In the technical solution of the present invention, the discharge part includes a slag discharge plate rotatably connected to the inner side walls of the front and rear ends of the support base, a plate end bracket welded and fixed to the bottom surfaces of the left and right ends of the slag discharge plate, a lifting rod arranged between the two plate end brackets, and a plurality of second pressure springs regularly distributed on the bottom surface of the lifting rod.

[0022] In the technical solution of the present invention, the lifting rod is slidably connected to the inside of the plate end bracket, and the upper and lower ends of the second pressure spring are respectively welded and fixed to the bottom surface of the lifting rod and the top surface of the support base cross plate.

[0023] In the technical solution of the present invention, the sprinkler head is fixedly connected to the inner groove wall of the mounting groove by bolts, the end of the water inlet pipe is connected to the sprinkler head flange, the connecting frame and the water inlet pipe are integrally formed, an extension rod is clamped and fixed between the docking roller and the water blocking plate, and a water through hole is opened inside the water blocking plate, which passes through the left and right sides and is adapted to the internal pipe diameter of the water inlet pipe.

[0024] In the technical solution of the present invention, the outer side of the extension rod is provided with a limit bracket for limiting its movement range, the limit bracket is fixedly connected to the inner wall of the outer sleeve body by bolts, and a third pressure spring is welded and fixed on the bottom surface of the limit bracket to contact the top surface of the docking roller.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. This rail-mounted slag disposal device based on the shield method of subway tunnel construction, when the slag transportation device is transported by a mobile rail car and moves into the interior of the slag treatment bin, one set of shaft end gears in the docking part will contact the tooth plate of the bin wall and rotate, thereby driving the discharge auger to rotate. This automated slag discharge mechanism not only optimizes the traditional manual cleaning process and significantly reduces the time required to empty the slag, but also fundamentally eliminates the safety risks that may be caused when using a gantry crane to move the slag receiving bin up and down.

[0027] 2. In the track-mounted slag disposal device based on the shield method for subway tunnel construction, when the slag transportation device as a whole is moving, the docking roller in the spraying part will reciprocate along the arc track on the top of the slag discharge bin. Whenever the docking roller moves to the highest point, the liquid in the liquid storage bin will pass through the spraying head and be evenly sprayed into the slag receiving bin, which prevents the slag from sticking during long-term transportation and ensures the smooth discharge of the slag.

[0028] 3. This rail-mounted slag disposal device based on the shield method of subway tunnel construction, when the slag transportation device is ready to leave the slag treatment bin, another set of docking parts will drive the discharging auger to rotate in the opposite direction, cooperating with the spraying part, and while discharging the remaining slag inside the slag receiving bin, it can also clean the inside of the bin wall, reducing the later inspection and maintenance of the slag receiving bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a partial structural schematic diagram of the present invention;

[0031] Figure 3 It is a schematic cross-sectional view of the structure of the slag transportation device in the present invention;

[0032] Figure 4 It is a schematic cross-sectional view of a part of the structure of the slag transportation device of the present invention;

[0033] Figure 5 It is a schematic cross-sectional view of the structure of the fixing part in the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the position limiting bin body in the present invention;

[0035] Figure 7 It is a schematic diagram of the structural disassembly of the docking part in the present invention;

[0036] Figure 8 It is a schematic diagram of the structure of the slag processing bin in the present invention;

[0037] Fig. 9It is a schematic cross-sectional view of the structure of the fixed outer bin in the present invention;

[0038] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of part A;

[0039] Fig.11 It is a schematic cross-sectional view of the structure of the discharge part in the present invention;

[0040] Fig.12 It is a structural schematic diagram of the spray part in the present invention.

[0041] Description of reference numerals:

[0042] 100. Fixed track;

[0043] 200. Mobile rail car;

[0044] 300, slag transport device; 310, fixed part; 311, fixed box; 312, limit bin; 313, slag discharge bin; 3130, slag discharge chute; 3131, rotating chute; 320, moving part; 321, slag receiving bin; 322, limit telescopic rod; 323, first pressure spring; 330, discharging auger; 340, docking part; 341, rotating shaft; 342, ratchet; 343, outer ring body; 344, ratchet; 345, shaft end gear;

[0045] 400, slag treatment bin; 410, fixed outer bin; 411, support base; 412, outer bin body; 4120, liquid storage bin; 4121, mounting groove; 413, bin wall tooth plate; 420, discharge part; 421, slag discharge plate; 422, plate end bracket; 423, lifting rod; 424, second pressure spring; 430, spray part; 431, spray head; 432, water inlet pipe; 433, connecting frame; 434, docking roller; 435, extension rod; 436, water blocking plate; 4360, water through hole; 437, limit bracket; 438, third pressure spring. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, 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 embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-Figure 12 As shown, this embodiment provides a technical solution:

[0048] A rail-mounted slag disposal device based on the shield method for subway tunnel construction includes a mobile rail vehicle 200 moving on a fixed rail 100, a plurality of slag transportation devices 300 arranged on the mobile rail vehicle 200, and a slag processing bin 400 arranged outside the end of the fixed rail 100;

[0049] In this embodiment, Figure 3-Figure 7 As shown, the slag transport device 300 includes a fixed portion 310, a movable portion 320 disposed inside the fixed portion 310, a discharging auger 330 disposed below the movable portion 320, and a docking portion 340 disposed outside the left and right ends of the discharging auger 330 and symmetrically arranged at the center;

[0050] Specifically, the fixing portion 310 includes a fixing box body 311 , a limiting bin body 312 disposed inside the fixing box body 311 , and a slag discharge bin body 313 disposed on the outer side walls at the left and right ends of the fixing box body 311 .

[0051] Furthermore, the fixed box body 311 is fixedly connected to the top surface of the top plate of the mobile rail vehicle 200 by bolts, the limiting bin body 312 is welded and fixed to the inner wall of the fixed box body 311, the slag bin body 313 is integrally formed with the fixed box body 311, and the interior of the slag bin body 313 is provided with a slag trough 3130 that passes through the left and right, and the slag bin body 313 is provided with a rotating groove 3131 above the slag trough 3130, and the top cross-section of the slag bin body 313 is a hemispherical arc.

[0052] Furthermore, the fixed box body 311 is used to ensure the strength of the overall structure of the fixed part 310, the limiting bin body 312 is used to limit the range of slag discharge, the slag discharge groove 3130 in the slag discharge bin body 313 is used to provide a range for the discharge of slag when the discharging auger 330 rotates, and the rotating groove 3131 is used to provide a rotation range for the structure in the docking part 340.

[0053] In this embodiment, Figure 6 As shown, the moving part 320 includes a slag receiving bin 321 and a plurality of first pressure springs 323 disposed at the corners of the bottom surface of the slag receiving bin 321;

[0054] Specifically, the slag receiving bin 321 is slidably connected to the interior of the fixed box body 311, the longitudinal cross-section of the slag receiving bin 321 is funnel-shaped and the bottom end of the funnel extends to the interior of the limiting bin body 312, the upper and lower ends of the first pressure spring 323 are respectively welded and fixed to the bottom surface of the slag receiving bin 321 and the inner bottom surface of the fixed box body 311, and a limiting telescopic rod 322 is provided on the inner side of the first pressure spring 323.

[0055] Furthermore, the shield machine transports the slag crushed by the front blade to the interior of the slag receiving bin 321 through a conveyor belt. As the gravity inside the slag receiving bin 321 increases, the first pressure spring 323 is squeezed, driving the limiting telescopic rod 322 to contract and finally stay on the top surface of the limiting bin body 312. When the slag inside the slag receiving bin 321 is gradually discharged, the first pressure spring 323 restores the position of the slag receiving bin 321 through its own elastic force, and further ensures the discharge of the internal slag by increasing the height.

[0056] In this embodiment, Figure 7 As shown, the docking portion 340 includes a rotating shaft 341, a ratchet 342 disposed at the inner end of the rotating shaft 341, an outer ring body 343 sleeved on the outer side of the ratchet 342, a plurality of ratchet pawls 344 regularly disposed on the inner side of the outer ring body 343, and a shaft end gear 345 disposed at the outer end of the rotating shaft 341;

[0057] Specifically, the left and right ends of the rotating shaft 341 are rotatably connected to the outer wall of the slag discharge bin 313 and the inner groove wall of the rotating groove 3131 respectively, and the ratchet 342 and the shaft end gear 345 are fixedly connected to the outer wall of the rotating shaft 341 through a bayonet.

[0058] Furthermore, the outer ring body 343 is rotatably connected to the inside of the rotating groove 3131 , and the outer ring body 343 is clamped and fixed to the center rod of the discharging auger 330 . The inner ring wall of the outer ring body 343 is provided with a plurality of grooves that provide a rotation range for the pawl 344 .

[0059] Furthermore, when the slag transport device 300 enters the slag processing bin 400 as a whole, the shaft end gear 345 of one group of docking parts contacts the bin wall tooth plate 413 and rotates, driving the rotating shaft 341 and the ratchet 342 to rotate together, and the ratchet 342 then conflicts with the pawl 344 in the outer ring body 343, thereby driving the outer ring body 343 to rotate as a whole, and then driving the discharging auger 330 to rotate, thereby discharging the slag in the slag receiving bin 321 through the slag discharge trough 3130 in the slag discharge bin body 313 to the interior of the slag receiving bin 321. At this time, the ratchet 342 in another group of docking parts 340 rotates along the outer ring body 343 without conflicting with the several pawls 344 of the outer ring body 343.

[0060] In this embodiment, Figure 8-Figure 12 As shown, the slag processing bin 400 includes a fixed outer bin 410, a discharge portion 420 disposed at the outer side walls of the left and right ends of the fixed outer bin 410 near the bottom, and a plurality of spray portions 430 regularly disposed on the top surface of the fixed outer bin 410;

[0061] Specifically, the fixed outer bin 410 includes a support base 411 symmetrically arranged on the left and right, a jacket bin body 412 arranged at the top of the two groups of support bases 411, and a bin wall tooth plate 413 arranged at the bottom end of the inner wall of the jacket bin body 412.

[0062] Furthermore, the support base 411 is fixedly connected to the ground in the subway tunnel by bolts, the outer bin body 412 is welded and fixed to the support base 411, and liquid storage bins 4120 for storing slag cleaning liquid are provided at the left and right ends of the outer bin body 412. A plurality of regularly distributed and vertically penetrating mounting grooves 4121 are provided on the top surface of the outer bin body 412, and the bin wall tooth plate 413 is welded and fixed to the inner wall of the outer bin body 412, and the bin wall tooth plate 413 is meshed with the shaft end gear 345.

[0063] Furthermore, the support base 411 and the outer housing 412 are used to ensure the strength of the overall structure of the fixed outer housing 410, the mounting groove 4121 is used to provide an installation area for the structure in the spray section 430, and the housing wall tooth plate 413 is used to interfere with the shaft end gear 345 in the docking section 340 to drive it to rotate.

[0064] In this embodiment, Fig.11 As shown, the discharge part 420 includes a slag discharge plate 421 rotatably connected to the inner side walls of the front and rear ends of the support base 411 at the front and rear ends, a plate end bracket 422 welded and fixed to the bottom surfaces of the left and right ends of the slag discharge plate 421, a lifting rod 423 arranged between the two plate end brackets 422, and a plurality of second pressure springs 424 regularly distributed on the bottom surface of the lifting rod 423;

[0065] Specifically, the lifting rod 423 is slidably connected to the inside of the plate end bracket 422, and the upper and lower ends of the second pressure spring 424 are respectively welded and fixed to the bottom surface of the lifting rod 423 and the top surface of the horizontal plate of the support base 411.

[0066] Furthermore, after being discharged from the slag outlet chute 3130, the slag falls onto the top of the slag discharge plate 421 in one group of discharge parts 420, and the slag discharge plate 421 moves the slag to the vertical conveyor belt arranged at the hole entrance. The inclination angle of the slag discharge plate 421 changes with the change of its own gravity, and it is restored under the action of the second pressure spring 424, thereby ensuring the discharge of surface slag.

[0067] In this embodiment, Fig.12 As shown, the spray part 430 includes a spray head 431, a water inlet pipe 432 provided at both ends of the spray head 431 and extending into the inner part of the outer casing 412, a connecting frame 433 provided on the outer wall of the water inlet pipe 432, a docking roller 434 provided below the connecting frame 433, and a water blocking plate 436 that moves with the movement of the docking roller 434;

[0068] Specifically, the sprinkler head 431 is fixedly connected to the inner groove wall of the mounting groove 4121 by bolts, the end of the water inlet pipe 432 is flange-connected to the sprinkler head 431, the connecting frame 433 and the water inlet pipe 432 are integrally formed, an extension rod 435 is clamped and fixed between the docking roller 434 and the water blocking plate 436, and a water through hole 4360 is opened inside the water blocking plate 436, which runs through the left and right sides and is adapted to the internal pipe diameter of the water inlet pipe 432.

[0069] Furthermore, the outer side of the extension rod 435 is provided with a limit bracket 437 for limiting its movement range. The limit bracket 437 is fixedly connected to the inner wall of the outer sleeve body 412 by bolts, and a third pressure spring 438 that contacts the top surface of the docking roller 434 is welded and fixed on the bottom surface of the limit bracket 437.

[0070] Furthermore, during the overall movement of the slag transport device 300, after the docking roller 434 contacts the outer wall of the top end of the slag discharge bin body 313, it moves along the trajectory of the top end of the slag discharge bin body 313, and when it moves to the top end, the water hole 4360 in the water blocking plate 436 is connected with the water inlet pipe 432. At this time, the liquid pressurized by the pressurizing equipment inside the liquid storage bin 4120 enters the interior of the spray head 431 through the water inlet pipe 432, and finally, the liquid is evenly sprayed on the interior of the slag receiving bin 321 by several nozzles on the bottom surface of the spray head 431. The third pressure spring 438 will exert a downward force on the top surface of the docking roller 434 through its own elastic force to ensure that its position can be restored.

[0071] When the rail-mounted slag disposal device based on the shield method construction of a subway tunnel of the present invention is used, first, the mobile rail vehicle 200 moves the slag transportation device 300 to the rear of the shield machine;

[0072] The shield machine transports the slag crushed by the front blade to the interior of the slag receiving bin 321 through the conveyor belt. As the gravity inside the slag receiving bin 321 increases, the first pressure spring 323 is squeezed, driving the limit telescopic rod 322 to contract and finally stay on the top surface of the limit bin body 312.

[0073] Then, the mobile rail vehicle 200 starts again and transports the slag transport device 300 toward the slag processing bin 400;

[0074] When the slag transport device 300 enters the slag processing bin 400 as a whole, the shaft end gear 345 of one set of the docking parts contacts with the bin wall tooth plate 413 and rotates, driving the rotating shaft 341 and the ratchet 342 to rotate together, and the ratchet 342 then contacts with the pawl 344 in the outer ring body 343, driving the outer ring body 343 to rotate as a whole, and then driving the discharging auger 330 to rotate, so that the slag in the slag receiving bin 321 is discharged to the inside of the slag receiving bin 321 through the slag discharge trough 3130 in the slag discharge bin body 313;

[0075] At this time, the ratchet wheels 342 in the other set of docking parts 340 rotate along the outer collar body 343 without conflicting with the plurality of ratchet claws 344 of the outer collar body 343;

[0076] After being discharged from the slag discharge chute 3130, the slag falls onto the top of the slag discharge plate 421 in one set of the discharge parts 420, and the slag discharge plate 421 moves the slag to the vertical conveyor belt arranged at the hole. The slag discharge plate 421 changes its tilt angle continuously with the change of its own gravity, and recovers under the action of the second pressure spring 424, thereby ensuring the discharge of the surface slag.

[0077] During the overall movement of the slag transport device 300, after the docking roller 434 contacts the outer wall of the top end of the slag discharge bin body 313, it moves along the track of the top end of the slag discharge bin body 313, and when it moves to the top end, the water hole 4360 in the water blocking plate 436 is connected with the water inlet pipe 432. At this time, the liquid in the liquid storage bin 4120 pressurized by the pressurizing device enters the interior of the spray head 431 through the water inlet pipe 432, and finally the liquid is evenly sprayed on the interior of the slag receiving bin 321 by a plurality of nozzles on the bottom surface of the spray head 431.

[0078] When the slag transport device 300 leaves the slag processing bin 400 as a whole, the discharging auger 330 will rotate after the other set of docking parts 340 contacts the bin wall tooth plate 413, and discharge the remaining slag and the cleaning liquid from the interior of the slag processing bin 400 through the other set of discharging parts 420.

[0079] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A rail-mounted slag disposal device based on the shield method for subway tunnel construction, comprising a mobile rail vehicle (200) moving on a fixed rail (100), a plurality of slag transportation devices (300) arranged on the mobile rail vehicle (200), and a slag processing bin (400) arranged outside the end of the fixed rail (100); Features: The slag transportation device (300) comprises a fixed part (310), a movable part (320) arranged inside the fixed part (310), a discharging auger (330) arranged below the movable part (320), and a docking part (340) arranged on the outer sides of the left and right ends of the discharging auger (330) and symmetrically arranged at the center; The fixing part (310) comprises a fixing box body (311), a limiting bin body (312) arranged inside the fixing box body (311), and a slag discharge bin body (313) arranged on the outer side walls at the left and right ends of the fixing box body (311); The moving part (320) comprises a slag receiving bin (321) and a plurality of first pressure springs (323) arranged at the corners of the bottom surface of the slag receiving bin (321); The docking portion (340) comprises a rotating shaft (341), a ratchet (342) arranged at the inner end of the rotating shaft (341), an outer collar (343) sleeved on the outer side of the ratchet (342), a plurality of ratchet pawls (344) regularly arranged on the inner side of the outer collar (343), and a shaft end gear (345) arranged at the outer end of the rotating shaft (341); The slag processing bin (400) comprises a fixed outer bin (410), a discharge portion (420) arranged at the outer side walls at both ends of the fixed outer bin (410) near the bottom, and a plurality of spray portions (430) regularly arranged on the top surface of the fixed outer bin (410); The fixed outer bin (410) comprises a support base (411) symmetrically arranged on the left and right, an outer bin body (412) arranged at the top ends of the two groups of support bases (411), and a bin wall tooth plate (413) arranged at the bottom end of the inner side wall of the outer bin body (412); The spraying part (430) comprises a spraying head (431), a water inlet pipe (432) arranged at both ends of the spraying head (431) and extending into the interior of the outer casing body (412), a connecting frame (433) arranged on the outer tube wall of the water inlet pipe (432), a docking roller (434) arranged below the connecting frame (433), and a water blocking plate (436) that moves with the movement of the docking roller (434).

2. The rail-mounted slag disposal device based on the subway tunnel shield construction method according to claim 1 is characterized in that: The fixed box body (311) is fixedly connected to the top surface of the top plate of the mobile rail vehicle (200) by bolts, the limiting bin body (312) is welded and fixed to the inner wall of the fixed box body (311), the slag discharge bin body (313) and the fixed box body (311) are integrally formed, the slag discharge bin body (313) is provided with a slag discharge groove (3130) extending left and right, the slag discharge bin body (313) is provided with a rotating groove (3131) above the slag discharge groove (3130), and the top cross-section of the slag discharge bin body (313) is in the shape of a hemispherical arc.

3. The track-mounted slag disposal device based on the subway tunnel shield construction method according to claim 1 is characterized by: The slag receiving bin (321) is slidably connected to the interior of the fixed box body (311); the longitudinal cross-section of the slag receiving bin (321) is funnel-shaped and the bottom end of the funnel extends to the interior of the limiting bin body (312); the upper and lower ends of the first pressure spring (323) are respectively welded and fixed to the bottom surface of the slag receiving bin (321) and the inner bottom surface of the fixed box body (311); and a limiting telescopic rod (322) is provided on the inner side of the first pressure spring (323).

4. The rail-mounted slag disposal device based on the shield method construction of subway tunnel according to claim 2 is characterized by: The left and right ends of the rotating shaft (341) are respectively rotatably connected to the outer wall of the slag discharge bin (313) and the inner groove wall of the rotating groove (3131), and the ratchet (342) and the shaft end gear (345) are fixedly connected to the outer wall of the rotating shaft (341) via a bayonet.

5. The track-mounted slag disposal device based on the subway tunnel shield construction method according to claim 4 is characterized by: The outer ring body (343) is rotatably connected to the inside of the rotating groove (3131), and the outer ring body (343) is clamped and fixed to the center rod of the discharging auger (330). The inner ring wall of the outer ring body (343) is provided with a plurality of grooves that provide a rotation range for the pawl (344).

6. The rail-mounted slag disposal device based on the shield method construction of subway tunnel according to claim 1, characterized in that: The support base (411) is fixedly connected to the ground in the subway tunnel by bolts, the outer casing body (412) is welded and fixed to the support base (411), the left and right ends of the outer casing body (412) are provided with liquid storage bins (4120) for storing slag cleaning liquid, and the top surface of the outer casing body (412) is provided with a plurality of regularly distributed and vertically penetrating mounting grooves (4121), the bin wall tooth plate (413) is welded and fixed to the inner side wall of the outer casing body (412), and the bin wall tooth plate (413) and the shaft end gear (345) are meshed with each other.

7. The rail-mounted slag disposal device based on subway tunnel shield construction according to claim 1, characterized in that: The discharge portion (420) includes a slag discharge plate (421) rotatably connected to the inner side walls of the front and rear ends of the support base (411), a plate end bracket (422) welded and fixed to the bottom surfaces of the left and right ends of the slag discharge plate (421), an upper lifting rod (423) arranged between the two plate end brackets (422), and a plurality of second pressure springs (424) regularly distributed on the bottom surface of the upper lifting rod (423).

8. The rail-mounted slag disposal device based on shield construction of subway tunnel according to claim 7, characterized in that: The lifting rod (423) is slidably connected to the inside of the plate end bracket (422), and the upper and lower ends of the second pressure spring (424) are respectively welded and fixed to the bottom surface of the lifting rod (423) and the top surface of the horizontal plate of the support base (411).

9. The rail-mounted slag disposal device based on shield construction of subway tunnel according to claim 6, characterized in that: The spray head (431) is fixedly connected to the inner groove wall of the installation groove (4121) by bolts, the end of the water inlet pipe (432) is flange-connected to the spray head (431), the connection frame (433) and the water inlet pipe (432) are integrally formed, an extension rod (435) is clamped and fixed between the docking roller (434) and the water blocking plate (436), and a water through hole (4360) which runs through from left to right and matches the internal pipe diameter of the water inlet pipe (432) is opened inside the water blocking plate (436).

10. The rail-mounted slag disposal device based on subway tunnel shield construction according to claim 9, characterized in that: The outer side of the extension rod (435) is provided with a limit bracket (437) for limiting its movement range, and the limit bracket (437) is fixedly connected to the inner wall of the outer sleeve body (412) by bolts, and a third pressure spring (438) is welded and fixed on the bottom surface of the limit bracket (437) to contact the top surface of the docking roller (434).

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