Residue soil treatment device for shield tunnel construction

Abstract

The invention discloses a muck treatment device for shield tunnel construction, and belongs to the technical field of muck treatment equipment.The muck treatment device comprises front-end conveying equipment, a tail-end discharging device and a soil-stone separation device, the front-end conveying equipment is fixedly installed on the tail-end discharging device, and the soil-stone separation device is fixedly installed on the tail-end discharging device; the soil and stone separation device comprises a centrifugal separation device, an extrusion discharging device and a combined sealing structure. In order to save the muck transportation cost and improve the muck utilization rate, the muck treatment device for shield tunnel construction is provided, large stones in muck are separated in a tunnel, the stones are released while the soil is extruded, preliminary screening of the muck is achieved, the cost of transporting the muck from the tunnel to the outside by a muck truck is reduced, and the muck transportation efficiency is improved. And the fine muck with utilization value is reserved in the tunnel for subsequent tunnel construction.

Description

Technical Field

[0001] The invention belongs to the technical field of slag processing equipment, and specifically refers to a slag processing device for shield tunnel construction. Background Art

[0002] Tunnel debris mainly comes from the tunnel excavation process and is processed and transported in a specific way. In the process of tunnel excavation, whether it is open excavation or shield excavation (shield method), a large amount of debris will be generated. The debris generated by tunnel excavation is mainly a mixture of soil, rock fragments, concrete fragments, sand, gravel, cement and other materials.

[0003] At present, tunnel slag is a mixture of soil and stone. If it is directly transported out of the tunnel by vehicles, the transportation cost of the slag will increase. If the large pieces of gravel that cannot fill the tunnel can be removed from the slag, on the one hand, the cost of soil used for tunnel construction can be saved, and on the other hand, the transportation cost of the slag truck can be reduced. Summary of the invention

[0004] In view of the above situation, in order to save the transportation cost of slag and improve the utilization rate of slag, the present invention provides a slag processing device for shield tunnel construction, which separates large stones in the slag in the tunnel and releases the stones while squeezing the soil, thereby realizing preliminary screening of the slag, reducing the cost of transporting slag from the tunnel to the outside by slag trucks, and retaining the fine slag with utilization value in the tunnel for subsequent tunnel construction.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a slag processing device for shield tunnel construction, including a front-end conveying device, a terminal discharge device and a soil-rock separation device, the front-end conveying device is fixedly installed on the terminal discharge device, and the soil-rock separation device is fixedly installed on the terminal discharge device; the soil-rock separation device includes a centrifugal separation device, an extrusion discharge device and a combined sealing structure, the extrusion discharge device is fixedly installed on the terminal discharge device, the centrifugal separation device is engaged and rotatably arranged in the extrusion discharge device, and the combined sealing structure is in contact with and connected to the extrusion discharge device.

[0006] Furthermore, the extrusion discharging device includes an external sleeve, a ball screw, a sliding limit rod, a nut clamping hole, a material receiving plate and an extrusion sealing sleeve. The external sleeve is fixedly mounted on the end discharge device, the ball screw is clamped and rotatably arranged in the external sleeve, the sliding limit rod is fixedly mounted on the inner wall of the external sleeve, the extrusion sealing sleeve is clamped and slid along the sliding limit rod, the nut clamping hole is fixedly mounted on the extrusion sealing sleeve, the ball screw is threadedly connected to the nut clamping hole, and the material receiving plate is clamped and rotatably connected to the centrifugal separation device.

[0007] Preferably, a discharge port 1 is provided on the side wall of the outer sleeve to facilitate the extrusion of soil materials.

[0008] Furthermore, the centrifugal separation device includes a centrifugal drum, a gear ring sleeve, a centrifugal drive gear, an embedded slot and a centrifugal discharge hole, the centrifugal drum is engaged and rotatably arranged in an external sleeve, the gear ring sleeve is fixedly installed on the side wall of the centrifugal drum, the centrifugal drive gear is engaged and rotatably arranged on the inner wall of the external sleeve, the gear ring sleeve and the centrifugal drive gear are meshed with each other, the embedded slot is fixedly installed on the inner wall of the centrifugal drum, and the centrifugal discharge hole is fixedly arranged on the side wall of the centrifugal drum.

[0009] Furthermore, the material receiving plate is rotatably arranged in the embedded slot.

[0010] Preferably, the gear ring sleeve is driven by a motor, and the ball screw is driven by a motor.

[0011] Furthermore, the combined sealing structure includes an embedded discharge sleeve, a spliced ​​baffle plate, a positioning ring, gear one, gear ring one and gear two, the embedded discharge sleeve is fixedly connected to the external sleeve, the gear one is snap-fitted and rotatably mounted on the embedded discharge sleeve, the spliced ​​baffle plate is fixedly connected to gear one, the positioning ring is fixedly mounted on the feed port of the embedded discharge sleeve, the gear ring one is snap-fitted and rotatably mounted on the positioning ring, the inner wall and outer wall of the gear ring one are provided with gear teeth, the gear one is meshed with the inner wall of the gear ring one, and the gear two is meshed with the outer wall of the gear ring one.

[0012] Furthermore, the extrusion sealing sleeve is engaged and slidable between the external sleeve and the centrifugal drum.

[0013] Preferably, the gear 2 is installed on the splicing blocking plate through the bracket 1, the bracket 1 is provided with a bevel gear 1, the positioning ring is provided with a bracket 2, the bracket 2 is provided with a bevel gear 2 that is engaged and rotated, the bevel gear 1 and the bevel gear 2 are meshed with each other, the bracket 2 is provided with a gear 3 that is engaged and rotated, and the gear 3 is perpendicular to the gear 2.

[0014] Furthermore, an annular push plate is provided on the forward end of the extrusion sealing sleeve, and a rack 1 is provided on the inner wall of the extrusion sealing sleeve. The rack 1 is meshed with the gear 3. When the extrusion sealing sleeve is driven by the ball screw, the rack 1 in the extrusion sealing sleeve moves to rotate the gear 3. The gear 3 transmits kinetic energy to the gear ring 1 through the bevel gear and the gear, thereby rotating the gear 1 and rotating the spliced ​​baffle plate, thereby connecting the embedded discharge sleeve to the centrifugal drum.

[0015] Furthermore, the front-end conveying equipment includes a conveying sleeve, a spiral auger, and a discharge outlet. The conveying sleeve is fixedly connected to the external sleeve through a connecting plate. The spiral auger is rotatably arranged in the conveying sleeve. The discharge outlet is fixedly arranged on the side wall of the conveying sleeve. The discharge outlet is arranged above the material receiving plate, and the spiral auger is driven by a motor.

[0016] Furthermore, the terminal discharge device includes a roller shaft and a conveyor belt, the roller shaft is engaged and rotatably mounted on the plate on the conveying sleeve, the conveyor belt slides on the roller shaft, and the conveyor belt is arranged below the discharge port 1.

[0017] Furthermore, the spliced ​​baffle plate is in contact with and connected to the bottom wall of the centrifugal drum.

[0018] This solution provides a slag treatment device for shield tunnel construction, which has the following beneficial effects: After the slag is transported to the centrifugal drum by the spiral auger, the centrifugal force of the centrifugal drum during its rotation is used to screen out the smaller soil materials in the slag, and the remaining large stones are waiting to be discharged. When the fine slag needs to be squeezed out, the push plate on the extrusion sealing sleeve pushes the soil between the external sleeve and the centrifugal drum toward the direction of the discharge port 1. While delivering the fine slag, the rack on the inner wall of the extrusion sealing sleeve drives the gear 3 to rotate, and through the meshing transmission of the bevel gear, gear and gear ring, the spliced ​​barrier plate is finally rotated horizontally, opening the connection channel between the embedded discharge sleeve and the centrifugal drum, thereby achieving the design effect of squeezing fine slag while discharging large stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a slag processing device for shield tunnel construction provided by the present invention; Figure 2 A front stereoscopic sectional view of a slag processing device for shield tunnel construction provided by the present invention; Figure 3 An exploded diagram of a slag treatment device for shield tunnel construction provided by the present invention; Figure 4 A rear perspective sectional view of a slag processing device for shield tunnel construction provided by the present invention; Figure 5 It is a rear perspective view of the three-dimensional structure of the combined sealing structure; Figure 6 It is a front perspective view of the three-dimensional structure of the combined sealing structure; Figure 7 A cross-sectional view of a slag processing device for shield tunnel construction provided by the present invention in use; Figure 8A top view of a slag processing device for shield tunnel construction provided by the present invention; Fig. 9 Schematic diagram of the connection structure between rack one and gear three; Fig.10 A perspective view of a centrifugal separation device.

[0020] Among them, 1. Front-end conveying equipment, 2. End discharge device, 3. Soil-rock separation device, 4. Centrifugal separation device, 5. Extrusion discharge device, 6. Combined sealing structure, 7. External sleeve, 8. Ball screw, 9. Sliding limit rod, 10. Nut clamp hole, 11. Feeding plate, 12. Extrusion sealing sleeve, 13. Discharge port 1, 14. Centrifugal drum, 15. Gear ring sleeve, 16. Centrifugal drive gear, 17. Embedded card Groove, 18, centrifugal discharge hole, 19, embedded discharge sleeve, 20, spliced ​​baffle plate, 21, positioning ring, 22, gear one, 23, gear ring one, 24, gear two, 25, bracket one, 26, bevel gear one, 27, bracket two, 28, bevel gear two, 29, gear three, 30, push plate, 31, rack one, 32, conveying sleeve, 33, spiral auger, 34, discharge port, 35, roller shaft, 36, conveyor belt.

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0024] like Figure 1-Figure 10As shown, the present invention provides a slag processing device for shield tunnel construction, comprising a front-end conveying device 1, a terminal discharge device 2 and a soil-rock separation device 3, wherein the front-end conveying device 1 is fixedly mounted on the terminal discharge device 2, and the soil-rock separation device 3 is fixedly mounted on the terminal discharge device 2; the soil-rock separation device 3 comprises a centrifugal separation device 4, an extrusion discharge device 5 and a combined sealing structure 6, wherein the extrusion discharge device 5 is fixedly mounted on the terminal discharge device 2, the centrifugal separation device 4 is rotatably arranged in the extrusion discharge device 5, and the combined sealing structure 6 is in contact and connected with the extrusion discharge device 5.

[0025] The extrusion discharging device 5 includes an external sleeve 7, a ball screw 8, a sliding limit rod 9, a nut clamping hole 10, a material receiving plate 11 and an extrusion sealing sleeve 12. The external sleeve 7 is fixedly installed on the terminal discharge device 2, the ball screw 8 is engaged and rotatably arranged in the external sleeve 7, the sliding limit rod 9 is fixedly installed on the inner wall of the external sleeve 7, the extrusion sealing sleeve 12 is engaged and slid along the sliding limit rod 9, the nut clamping hole 10 is fixedly installed on the extrusion sealing sleeve 12, the ball screw 8 is threadedly connected to the nut clamping hole 10, and the material receiving plate 11 is engaged and rotatably connected to the centrifugal separation device 4.

[0026] The side wall of the outer sleeve 7 is provided with a discharge port 13 for conveniently squeezing out the soil material.

[0027] The centrifugal separation device 4 includes a centrifugal drum 14, a gear ring sleeve 15, a centrifugal drive gear 16, an embedded slot 17 and a centrifugal discharge hole 18. The centrifugal drum 14 is engaged and rotatably arranged in the external sleeve 7, the gear ring sleeve 15 is fixedly installed on the side wall of the centrifugal drum 14, the centrifugal drive gear 16 is engaged and rotatably arranged on the inner wall of the external sleeve 7, the gear ring sleeve 15 and the centrifugal drive gear 16 are meshed with each other, the embedded slot 17 is fixedly installed on the inner wall of the centrifugal drum 14, and the centrifugal discharge hole 18 is fixedly arranged on the side wall of the centrifugal drum 14.

[0028] The receiving plate 11 is rotatably mounted in the internal slot 17 .

[0029] The gear ring sleeve 15 is driven by a motor, and the ball screw 8 is driven by a motor.

[0030] The combined sealing structure 6 includes an embedded discharge sleeve 19, a spliced ​​baffle plate 20, a positioning ring 21, a gear 22, a gear ring 23 and a gear 24. The embedded discharge sleeve 19 is fixedly connected to the external sleeve 7, the gear 22 is snap-fitted and rotatably mounted on the embedded discharge sleeve 19, the spliced ​​baffle plate 20 is fixedly connected to the gear 22, the positioning ring 21 is fixedly mounted on the embedded discharge sleeve 19, the gear ring 23 is snap-fitted and rotatably mounted on the positioning ring 21, the inner wall and outer wall of the gear ring 23 are both provided with gear teeth, the gear 22 is meshed with the inner wall of the gear ring 23, and the gear 24 is meshed with the outer wall of the gear ring 23.

[0031] The extrusion sealing sleeve 12 is engaged and slidable between the outer sleeve 7 and the centrifugal drum 14 .

[0032] Gear 24 is installed on the splicing blocking plate 20 through bracket 1 25, bracket 1 25 is provided with bevel gear 1 26, bracket 27 is provided on the positioning ring 21, bracket 27 is provided with bevel gear 28 that is engaged and rotated, bevel gear 1 26 and bevel gear 2 28 are meshed with each other, bracket 2 27 is provided with gear 3 29 that is engaged and rotated, and gear 3 29 and gear 2 24 are perpendicular to each other.

[0033] An annular push plate 30 is provided on the extrusion sealing sleeve 12 , and a rack 1 31 is provided on the inner wall of the extrusion sealing sleeve 12 , and the rack 1 31 is meshed with the gear 3 29 .

[0034] The front-end conveying device 1 includes a conveying sleeve 32, a spiral auger 33, and a discharge port 34. The conveying sleeve 32 is fixedly connected to the external sleeve 7 through a connecting plate. The spiral auger 33 is rotatably arranged in the conveying sleeve 32. The discharge port 34 is fixedly arranged on the side wall of the conveying sleeve 32. The spiral auger 33 is driven by a motor.

[0035] The terminal discharge device 2 includes a roller 35 and a conveyor belt 36. The roller 35 is rotatably mounted on the plate on the conveying sleeve 32. The conveyor belt 36 slides on the roller 35. The conveyor belt 36 is arranged below the discharge port 13.

[0036] During specific use, the shield machine crushes the mountain during its forward movement, and the crushed soil and stones are transported to the end of the shield machine by the conveying equipment. The slag composed of soil and stones needs to be preliminarily processed in the tunnel to reduce the moisture in the slag and improve the utilization efficiency of the slag. Therefore, the slag needs to be preliminarily processed in the tunnel; first, the slag is conveyed from the bottom to the upper end, and the spiral auger 33 is used to convey the slag from the storage pool to the upper layer, and the slag is discharged at the discharge port 34 of the conveying sleeve 32, and the receiving plate 11 conveys the slag to the separation inside the external sleeve 7 In the centrifugal drum 14, after the motor connected to the centrifugal driving gear 16 is energized, the centrifugal driving gear 16 drives the centrifugal drum 14 to rotate by meshing with the gear ring sleeve 15. The slag is subjected to centrifugal force and sticks to the side wall of the centrifugal drum 14. There are centrifugal discharge holes 18 on the side wall of the centrifugal drum 14. Soil, water and small stones are discharged from the centrifugal discharge holes 18 and accumulate in the cavity between the centrifugal drum 14 and the external sleeve 7. When the centrifugal drum 14 rotates a certain number of times, the ball screw 8 rotates, driving the extrusion sealing sleeve 12 to squeeze the outer sleeve 7. The centrifugal drum 14 is provided with a plurality of cylindrical rollers 16, and the cylindrical rollers 16 are provided with a plurality of cylindrical rollers 17. The cylindrical rollers 16 are provided with a plurality of cylindrical rollers 18, and the cylindrical rollers 19 are provided with a plurality of cylindrical rollers 20. The cylindrical rollers 16 are provided with a plurality of cylindrical rollers 21, and the cylindrical rollers 19 are provided with a plurality of cylindrical rollers 22. The cylindrical rollers 16 are provided with a plurality of cylindrical rollers 23, and the cylindrical rollers 19 are provided with a plurality of cylindrical rollers 24. Gear 1 26 drives gear 2 24 to rotate, thereby rotating the gear ring 1 23 with gear teeth on both sides, rotating gear 1 22, and driving the spliced ​​baffle plate 20 to rotate in the external sleeve 7, opening the connecting channel between the embedded discharge sleeve 19 and the centrifugal drum 14. Since the bottom of the centrifugal drum 14 is set to be chamfered, large pieces of crushed stone fall from the bottom of the centrifugal drum 14 to the embedded discharge sleeve 19 below, and then discharge from the embedded discharge sleeve 19 to the equipment, achieving the effect of squeezing fine soil while discharging large pieces of stone.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A slag treatment device for shield tunnel construction, characterized in that: The invention comprises a front-end conveying device (1), a terminal discharge device (2) and a soil-rock separation device (3), wherein the front-end conveying device (1) and the soil-rock separation device (3) are respectively fixedly mounted at both ends of the terminal discharge device (2); the soil-rock separation device (3) comprises a centrifugal separation device (4), an extrusion discharge device (5) and a combined sealing structure (6), wherein the extrusion discharge device (5) is fixedly mounted on the terminal discharge device (2), the centrifugal separation device (4) is rotatably arranged in the extrusion discharge device (5), and the combined sealing structure (6) is in contact with and connected to the extrusion discharge device (5).

2. The slag processing device for shield tunnel construction according to claim 1 is characterized in that: The extrusion discharge device (5) comprises an external sleeve (7), a ball screw (8), a sliding limit rod (9), a nut clamping hole (10), a material receiving plate (11) and an extrusion sealing sleeve (12); the external sleeve (7) is fixedly mounted on the terminal discharge device (2); the ball screw (8) is arranged in the external sleeve (7) for engagement and rotation; the sliding limit rod (9) is fixedly mounted on the inner wall of the external sleeve (7); the extrusion sealing sleeve (12) engages and slides along the sliding limit rod (9); the nut clamping hole (10) is fixedly mounted on the extrusion sealing sleeve (12); the ball screw (8) is threadedly connected to the nut clamping hole (10); the material receiving plate (11) is engaged and rotationally connected to the centrifugal separation device (4); and a discharge port 1 (13) is provided on the side wall of the external sleeve (7).

3. The slag processing device for shield tunnel construction according to claim 2 is characterized in that: The centrifugal separation device (4) comprises a centrifugal drum (14), a gear ring sleeve (15), a centrifugal drive gear (16), an embedded slot (17) and a centrifugal discharge hole (18); the centrifugal drum (14) is rotatably mounted in an external sleeve (7); the gear ring sleeve (15) is fixedly mounted on a side wall of the centrifugal drum (14); the centrifugal drive gear (16) is rotatably mounted on an inner wall of the external sleeve (7); the gear ring sleeve (15) and the centrifugal drive gear (16) are meshed with each other; the embedded slot (17) is fixedly mounted on the inner wall of the centrifugal drum (14); and the centrifugal discharge hole (18) is fixedly mounted on the side wall of the centrifugal drum (14).

4. The slag processing device for shield tunnel construction according to claim 3 is characterized in that: The receiving plate (11) is rotatably arranged in the embedded slot (17); the gear ring sleeve (15) is driven by a motor, and the ball screw (8) is driven by a motor.

5. The slag processing device for shield tunnel construction according to claim 4 is characterized in that: The combined sealing structure (6) comprises an embedded discharge sleeve (19), a spliced ​​baffle plate (20), a positioning ring (21), a gear 1 (22), a gear ring 1 (23) and a gear 2 (24); the embedded discharge sleeve (19) is fixedly connected to the external sleeve (7); the gear 1 (22) is mounted on the embedded discharge sleeve (19) in a snap-fitting and rotatable manner; the spliced ​​baffle plate (20) is fixedly connected to the gear 1 (22); the positioning ring (21) is fixedly mounted on the embedded discharge sleeve (19); the gear ring 1 (23) is mounted on the positioning ring (21) in a snap-fitting and rotatable manner; gear teeth are provided on the inner wall and the outer wall of the gear ring 1 (23); the gear 1 (22) meshes with the inner wall of the gear ring 1 (23); and the gear 2 (24) meshes with the outer wall of the gear ring 1 (23).

6. The device for processing slag for shield tunnel construction according to claim 5, characterized in that: The extrusion sealing sleeve (12) is engaged and slidable between the outer sleeve (7) and the centrifugal drum (14).

7. A slag processing device for shield tunnel construction according to claim 6, characterized in that: The gear 2 (24) is mounted on the splicing baffle plate (20) via a bracket 1 (25); the bracket 1 (25) is provided with a bevel gear 1 (26); the positioning ring (21) is provided with a bracket 2 (27); the bracket 2 (27) is provided with a bevel gear 2 (28) that engages and rotates; the bevel gear 1 (26) and the bevel gear 2 (28) are meshed with each other; the bracket 2 (27) is provided with a gear 3 (29) that engages and rotates; the gear 3 (29) and the gear 2 (24) are perpendicular to each other.

8. The device for processing slag for shield tunnel construction according to claim 7, characterized in that: An annular push plate (30) is provided on the extrusion sealing sleeve (12), and a rack one (31) is provided on the inner wall of the extrusion sealing sleeve (12), wherein the rack one (31) meshes with a gear three (29).

9. The slag processing device for shield tunnel construction according to claim 8, characterized in that: The front-end conveying device (1) comprises a conveying sleeve (32), a spiral auger (33), and a discharge port (34); the conveying sleeve (32) is fixedly connected to the external sleeve (7) via a connecting plate; the spiral auger (33) is rotatably arranged in the conveying sleeve (32); the discharge port (34) is fixedly arranged on the side wall of the conveying sleeve (32); and the spiral auger (33) is driven by a motor.

10. The device for processing slag for shield tunnel construction according to claim 9, characterized in that: The terminal discharge device (2) comprises a roller (35), a conveyor belt (36) and a connected plate, wherein the roller (35) is rotatably mounted on the plate on the conveying sleeve (32), and the conveyor belt (36) slides on the roller (35), and the conveyor belt (36) is arranged below the first discharge port (13).

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