Residue soil transporting and distributing device suitable for multi-mode shield tunneling machine

Abstract

The utility model discloses a muck transporting and distributing device suitable for a multi-mode shield tunneling machine, and belongs to the technical field of tunnel construction. The device comprises a spiral conveyor, an unearthing gate, a dry residue conveying mechanism and a slurry conveying mechanism, the dry slag conveying mechanism comprises a dry slag conveying assembly, a first material distributing machine, a second material distributing machine and a transport vehicle. The dry slag conveying assembly is arranged above the first material distributor; each of the first material distributor and the second material distributor comprises two material distribution outlets; the second material distributor is arranged below each material distribution outlet of the first material distributor, and the transport vehicle is arranged below each material distribution outlet of the second material distributor; the slurry conveying mechanism comprises screening equipment used for separating dry residues and sewage, and the screening equipment discharges the separated dry residues to the dry residue conveying assembly. When modes of the shield tunneling machine are switched, the shield tunneling machine adapts to muck transportation of different stratums, and tunneling efficiency and safety are improved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, specifically relating to a soil and debris transportation and distribution device suitable for multi-mode shield tunneling machines. Background Technology

[0002] As advanced equipment in tunnel construction, the performance of the tunnel boring machine's (TBM) excavator transportation system directly affects the safety and efficiency of tunnel construction. During multi-mode TBM construction, frequent mode switching leads to prolonged downtime and low tunneling efficiency. Furthermore, frequent mode switching results in frequent pressurized material handling, posing safety hazards. Currently, excavator transportation systems require the installation and removal of devices during mode switching, exhibiting poor flexibility and adaptability, and incurring high equipment maintenance costs.

[0003] As rail transit projects become more widespread, their application scope is also expanding. To meet the multi-functional use of tunnels, tunnel design diameters are increasing, leading to larger volumes of excavated soil during construction. In water-rich strata, screw conveyors are prone to gushing, causing instability at the excavation face and affecting tunnel construction safety. Furthermore, for long-distance shield tunneling, current rail-mounted excavator transport of excavated soil requires filling one section of the soil box before a locomotive pulls it forward, then transporting the second section to the conveyor belt hopper, filling each section sequentially before the locomotive transports the entire load to the outside of the tunnel, resulting in low efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a soil transportation and distribution device suitable for multi-mode tunnel boring machines, so as to enable the tunnel boring machine to adapt to the soil transportation of different strata when switching tunnel boring machine modes, thereby improving tunneling efficiency and safety.

[0005] This utility model provides the following technical solution:

[0006] A material handling and distribution device for multi-mode tunnel boring machines includes a screw conveyor, a discharge gate, a dry slag transport mechanism, and a slurry transport mechanism. The screw conveyor is used to transport dry slag or slurry, and its tail end is connected to the discharge gate. The dry slag transport mechanism is located below the discharge gate, and the slurry transport mechanism is connected to the output end of the screw conveyor. When the discharge gate is open, dry slag is discharged through the gate to the dry slag transport mechanism; when the gate is closed, slurry is discharged through the output end of the screw conveyor to the slurry transport mechanism. The dry slag transport mechanism includes a dry slag transport mechanism. The system comprises a slag conveying assembly, a first distributor, a second distributor, and a transport vehicle; the dry slag conveying assembly is located above the first distributor and is used to convey dry slag to the first distributor; both the first and second distributors include two distribution outlets; the second distributor is located below each distribution outlet of the first distributor, and the transport vehicle is located below each distribution outlet of the second distributor; the slurry transport mechanism includes a screening device for separating dry slag and wastewater, the screening device being located above the dry slag conveying assembly and discharging the separated dry slag to the dry slag conveying assembly.

[0007] As an optional technical solution of this utility model, the dry slag conveying assembly includes a main belt conveyor and a slag distribution hopper; the main belt conveyor is located below the discharge gate, and the slag distribution hopper is located at the tail of the main belt conveyor. The main belt conveyor is used to receive the dry slag discharged from the discharge gate and convey the dry slag to the slag distribution hopper.

[0008] As an optional technical solution of this utility model, the screening device is located above the slag hopper, and the separated dry slag is discharged into the slag hopper.

[0009] As an optional technical solution of this utility model, the slag hopper is located above the middle of the first material distributor and is used to discharge the dry slag inside it to the first material distributor.

[0010] As an optional technical solution of this utility model, the dry slag transportation mechanism further includes a first mounting frame for installing a first material distributor and a second mounting frame for installing a second material distributor; both the first and second mounting frames include a mounting frame body and a clamp fixing block; both the first and second material distributors are mounted on the mounting frame body by clamps that cooperate with the clamp fixing block.

[0011] As an optional technical solution of this utility model, both the first and second material distributors adopt a double-drive screw conveyor.

[0012] As an optional technical solution of this utility model, the mud transport mechanism further includes a mud pump, a mud pipe and a sewage pipe; the output end of the screw conveyor, the mud pump, the mud pipe, the screening equipment and the sewage pipe are connected in sequence, the mud is transported to the screening equipment through the mud pipe, and the sewage separated by the screening equipment flows into the sewage pipe.

[0013] As an optional technical solution of this utility model, the outlet of the sewage pipe is equipped with a sewage treatment device for filtering sewage.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a slag transportation and distribution device suitable for multi-mode tunnel boring machines (TBMs). It enables slag transportation under different geological conditions without disassembling or installing any equipment when switching TBM working modes. Through the first and second distribution machines, dry slag is simultaneously transported to four transport vehicles without needing to adjust the vehicle positions to receive the slag, thus improving slag transportation efficiency. It features fast tunneling efficiency, high safety factor, and high slag transportation efficiency, thereby enhancing the geological adaptability of the TBM and improving the safety and efficiency of on-site construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the slag transportation and material distribution device in this utility model embodiment;

[0017] Figure 2 This is a schematic diagram of the structure of the first mounting bracket and the second mounting bracket in the embodiment of this utility model.

[0018] The following are marked in the diagram: 1. Screw conveyor; 2. Excavation gate; 3. Mud pump; 4. Main conveyor belt; 5. Mud pipeline; 6. Screening equipment; 7. Slag hopper; 8. First distributor; 9. Second distributor; 10. First mounting frame; 11. Second mounting frame; 12. Transport vehicle; 13. Sewage pipeline; 14. Sewage treatment equipment; 101. Mounting frame body; 102. Clamping block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0020] Example 1

[0021] This embodiment provides a soil and material transport and distribution device suitable for multi-mode tunnel boring machines, such as... Figure 1 As shown, it includes a screw conveyor 1, a soil discharge gate 2, a dry slag transport mechanism, and a mud transport mechanism.

[0022] The screw conveyor 1 is used to transport dry slag or mud, and its tail end is connected to the discharge gate 2. The dry slag transport mechanism is located below the discharge gate 2, and the mud transport mechanism is connected to the output end of the screw conveyor 1. When the discharge gate 2 is open, the dry slag is discharged through the discharge gate 2 to the dry slag transport mechanism to realize the transport of dry slag in water-scarce strata. When the discharge gate 2 is closed, the mud is discharged through the output end of the screw conveyor 1 to the mud transport mechanism to realize the transport of mud in water-rich strata.

[0023] The dry slag transport mechanism includes a dry slag conveying assembly, a first distributor 8, a second distributor 9, and a transport vehicle 12. The dry slag conveying assembly is located above the first distributor 8 and is used to transport the dry slag to the first distributor 8. Both the first distributor 8 and the second distributor 9 include two distributing outlets. The second distributor 9 is located below each distributing outlet of the first distributor 8, and the transport vehicle 12 is located below each distributing outlet of the second distributor 9. The first distributor 8 divides the dry slag into two portions, and the second distributor 9 can divide the dry slag from the first distributor 8 into four portions.

[0024] The slurry transport mechanism includes a screening device 6 for separating dry sludge and wastewater. The screening device 6 is located above the dry sludge conveying assembly and discharges the separated dry sludge into the dry sludge conveying assembly. The slurry transport mechanism also includes a slurry pump 3, a slurry pipeline 5, and a wastewater pipeline 13. The output end of the screw conveyor 1, the slurry pump 3, the slurry pipeline 5, the screening device 6, and the wastewater pipeline 13 are connected in sequence. The slurry is transported to the screening device 6 through the slurry pipeline 5, and the wastewater separated by the screening device 6 flows into the wastewater pipeline 13.

[0025] Working principle:

[0026] When transporting dry slag from water-poor strata, the discharge gate 2 is opened, and the dry slag conveying assembly transports the dry slag to the first distributor 8. The two distribution outlets of the first distributor 8 discharge the dry slag to the second distributor 9. The four distribution outlets of the two second distributors 9 divide the dry slag into four parts, which are then transported by four transport vehicles 12 below the distribution outlets of the second distributors 9. This greatly improves the efficiency of long-distance transportation of dry slag and accelerates the progress of tunneling construction.

[0027] When conveying mud from water-rich strata, the discharge gate 2 is closed when the screw conveyor belt 1 outputs mud. The mud is then transported to the screening equipment 6 through the mud pump 3 and mud pipeline 5 to screen out dry residue and wastewater. The screened dry residue is discharged in the same way as the above-mentioned slag discharge method, and the screened wastewater is discharged to the ground through the wastewater pipeline 13.

[0028] Example 2

[0029] This embodiment provides other implementation methods for the slag transportation and material distribution device based on Embodiment 1.

[0030] like Figure 1 As shown, the dry slag conveying assembly includes a main conveyor belt 4 and a slag distribution hopper 7. The main conveyor belt 4 is located below the discharge gate 2, and the slag distribution hopper 7 is located at the tail of the main conveyor belt 4. The main conveyor belt 4 is used to receive the dry slag discharged from the discharge gate 2 and convey the dry slag to the slag distribution hopper 7.

[0031] Furthermore, the screening device 6 is located above the slag hopper 7, and discharges the separated dry slag into the slag hopper 7.

[0032] Furthermore, the slag hopper 7 is located above the middle of the first material distributor 8, and is used to discharge the dry slag inside it to the first material distributor 8.

[0033] In this embodiment, both the first material distributor 8 and the second material distributor 9 adopt a dual-drive screw conveyor. The dual-drive screw conveyor can divide the dry slag into two parts and convey them in the forward and backward directions.

[0034] like Figure 1 As shown, the outlet of the sewage pipe 13 is equipped with a sewage treatment device 14 for filtering sewage.

[0035] like Figure 1 and Figure 2 As shown, the dry slag transport mechanism further includes a first mounting frame 10 for mounting the first distributor 8 and a second mounting frame 11 for mounting the second distributor 9. Both the first mounting frame 10 and the second mounting frame 11 include a mounting frame body 101 and a clamp fixing block 102. The first distributor 8 and the second distributor 9 are both mounted on the mounting frame body 101 via clamps that cooperate with the clamp fixing block 102.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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 a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A soil and material transport and distribution device suitable for multi-mode tunnel boring machines, characterized in that: Includes a screw conveyor (1), a soil discharge gate (2), a dry slag transport mechanism, and a mud transport mechanism; The screw conveyor (1) is used to transport dry slag or slurry, and its tail end is connected to the discharge gate (2); the dry slag transport mechanism is located below the discharge gate (2), and the slurry transport mechanism is connected to the output end of the screw conveyor (1); when the discharge gate (2) is open, the dry slag is discharged to the dry slag transport mechanism through the discharge gate (2), and when the discharge gate (2) is closed, the slurry is discharged to the slurry transport mechanism through the output end of the screw conveyor (1); The dry slag transport mechanism includes a dry slag conveying assembly, a first distributor (8), a second distributor (9), and a transport vehicle (12); the dry slag conveying assembly is located above the first distributor (8) and is used to transport the dry slag to the first distributor (8); both the first distributor (8) and the second distributor (9) include two distribution outlets; the second distributor (9) is located below each distribution outlet of the first distributor (8), and the transport vehicle (12) is located below each distribution outlet of the second distributor (9); The mud transport mechanism includes a screening device (6) for separating dry sludge and wastewater. The screening device (6) is located above the dry sludge transport assembly and discharges the separated dry sludge into the dry sludge transport assembly.

2. The slag transport and distribution device for multi-mode tunnel boring machines according to claim 1, characterized in that: The dry slag conveying assembly includes a main belt conveyor (4) and a slag hopper (7). The main conveyor belt (4) is located below the discharge gate (2), and the slag hopper (7) is located at the tail of the main conveyor belt (4). The main conveyor belt (4) is used to receive the dry slag discharged from the discharge gate (2) and transport the dry slag to the slag hopper (7).

3. The slag transportation and material distribution device for multi-mode tunnel boring machines according to claim 2, characterized in that: The screening device (6) is located above the slag hopper (7) and discharges the separated dry slag into the slag hopper (7).

4. The slag transport and distribution device for multi-mode tunnel boring machines according to claim 3, characterized in that: The slag hopper (7) is located above the middle of the first material distributor (8) and is used to discharge the dry slag inside it to the first material distributor (8).

5. The slag transport and distribution device for multi-mode tunnel boring machines according to claim 1, characterized in that: The dry slag transport mechanism also includes a first mounting frame (10) for installing the first distributor (8) and a second mounting frame (11) for installing the second distributor (9). The first mounting bracket (10) and the second mounting bracket (11) both include a mounting bracket body (101) and a clamp fixing block (102). The first material sorter (8) and the second material sorter (9) are both installed on the mounting frame (101) by clamps that cooperate with the clamp fixing block (102).

6. The slag transport and material distribution device for multi-mode tunnel boring machines according to claim 1, characterized in that: Both the first material distributor (8) and the second material distributor (9) are dual-drive screw conveyors.

7. The slag transport and material distribution device for multi-mode tunnel boring machines according to claim 1, characterized in that: The mud transport mechanism also includes a mud pump (3), a mud pipeline (5), and a sewage pipeline (13). The output end of the screw conveyor (1), the mud pump (3), the mud pipe (5), the screening equipment (6) and the sewage pipe (13) are connected in sequence. The mud is transported to the screening equipment (6) through the mud pipe (5), and the sewage separated by the screening equipment (6) flows into the sewage pipe (13).

8. The slag transport and material distribution device for multi-mode tunnel boring machines according to claim 7, characterized in that: The outlet of the sewage pipe (13) is equipped with a sewage treatment device (14) for filtering sewage.

Images