Anti-blocking slag extractor for tunnel shield construction

Abstract

The utility model discloses an anti-blocking slag extractor for tunnel shield construction, and relates to the technical field of shield construction, the anti-blocking slag extractor comprises a mounting frame and a material collecting device, the mounting frame is of a frame structure, the top of the mounting frame is fixedly connected with a plurality of supporting rods which are symmetrically distributed, and the material collecting device is fixedly connected to the top of the mounting frame; according to the anti-blocking slag extractor for tunnel shield construction, the material collecting device is arranged, when a soil body passes through the tops of the intercepting rods, the part, smaller than the distance between the intercepting rods, of the soil body enters the conveying pipe after passing through the intercepting rods, and the part, larger than the distance between the intercepting rods, of the soil body extends to the tops of the intercepting rods to move; the soil mass particles are conveyed through the main output port until the soil mass at the top of the intercepting rod gathers to the inner side of the main output port, so that the soil mass particles are automatically distinguished according to the size, the soil mass particles are conveyed after being classified according to the size, large particles and small particles are provided with independent conveying channels, and blocking during soil mass conveying is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to an anti-blocking slag discharger for tunnel shield construction. Background Art

[0002] Shield construction is a tunnel excavation technology carried out underground, mainly using a shield machine. The soil is cut by the rotation of the cutter head at the front end, and the pumping system transports the cut soil to the ground through a pipe.

[0003] For example, a slag discharge device for tunnel shield construction with publication number CN214836375U comprises a shield machine body, a shield machine head and a shield machine processing chamber, a shield machine processing chamber is provided at the front end of the shield machine body, the shield machine head is movably installed at the front end of the shield machine processing chamber, a slag collecting mechanism is provided on the shield machine processing chamber, a layered processing carrying mechanism is provided on the shield machine body and located outside the shield machine processing chamber and is connected to the slag collecting mechanism, the circulating pressurized injection mechanism is installed on the inner wall of the shield machine body, the slag discharge device for tunnel shield construction is installed based on the moving end of the tunnel shield machine, the layered processing carrying mechanism can move therewith, and slag of different particle sizes can be separated, and water flow of different pressures can be injected according to demand by the circulating pressurized injection mechanism to carry out discharge, thereby improving the discharge efficiency, facilitating subsequent treatment, and avoiding blockage of the discharge pipeline.

[0004] A slag discharge device for tunnel shield construction in the above technical solution separates slag of different particle sizes, injects water flow according to demand, and carries out discharge. In the actual operation process, the operation conditions in shield construction are very complicated. When encountering frozen soil or soil layers that can react with water, the addition of water will cause the chemical or physical properties of the cut soil to change, resulting in pipeline blockage. Utility Model Content

[0005] The purpose of the utility model is to provide a slag discharger for tunnel shield construction that is anti-clogging, so as to solve the problem in the above-mentioned background technology that when encountering substances in frozen soil or soil layers that can react with water, the addition of water will cause the chemical or physical properties of the cut soil to change, resulting in pipeline blockage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-blocking slag discharger for tunnel shield construction, comprising a mounting frame and a material collecting device, wherein the mounting frame is configured as a frame structure, and a plurality of symmetrically distributed support rods are fixedly connected to the top of the mounting frame, and the material collecting device is fixedly connected to the top of the mounting frame;

[0007] The collecting device is provided with a distribution hopper, a main output port is provided in the middle of the distribution hopper, and two auxiliary output ports are symmetrically provided at the bottom of the distribution hopper, and the main output port is located between the two conveyor belts, multiple equally distributed intercepting bars are fixedly connected to both sides of the distribution hopper, and multiple equally distributed intercepting bars are located at the top of the two auxiliary output ports, and multiple equally distributed intercepting bars form a grid structure at the top of the auxiliary output ports;

[0008] A transport structure for transporting slag is arranged on the top of the mounting frame, and the transport structure is divided into a main transport structure and an auxiliary transport structure, and two auxiliary transport structures are arranged symmetrically on both sides of the main transport structure.

[0009] Preferably, the secondary transport structure comprises a transport tube fixedly connected to the top of the mounting frame, and a transport rod is rotatably connected inside the transport tube, the transport rod is configured as a spiral structure, and the transport rod is driven by a motor located at the end of the transport tube.

[0010] Preferably, a feed port extending upward is provided at the top of the lower end of the transport pipe, and a discharge port extending downward is provided at the bottom of one end of the transport pipe away from the feed port, and both the transport rod and the feed port are connected to the interior of the transport pipe.

[0011] Preferably, the top of the feed port is fixedly connected to the bottom of the distribution hopper, and the feed port is aligned with the bottom of the auxiliary output port, and the bottom of the output port is fixedly connected with a guide groove, and the guide groove is fixedly connected to the top of the mounting frame.

[0012] Preferably, the transport pipe and the guide groove form a herringbone structure, and the herringbone structure formed by the transport pipe and the guide groove and the mounting frame form a stable triangular structure.

[0013] Preferably, the main transport structure comprises a support frame fixedly connected to the top of the mounting frame, and the inner sides of both ends of the support frame are rotatably connected to driving rollers, and the outer sides of the two driving rollers are rotatably connected to conveyor belts.

[0014] Preferably, the top and bottom of the support frame are fixedly connected with a plurality of equally spaced mounting seats, and a support roller is rotatably connected between every two mounting seats, and the side of each support roller away from the support frame is in contact with the inner side of the conveyor belt.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The anti-blocking slag discharger for tunnel shield construction is provided with a collecting device. When the soil passes through the top of the interception bar, the part of the soil smaller than the spacing of the interception bar will pass through the interception bar and enter the transport pipe, while the part of the soil larger than the spacing of the interception bar will extend its top to move until the soil at the top of the interception bar gathers inside the main output port, thereby realizing automatic distinction of soil particle size. By transporting the soil particles according to the size of the classified particles, larger particles and smaller particles are provided with independent transport channels, thereby preventing blockage during soil transportation.

[0017] Furthermore, a main transport structure is provided to transport the soil with larger particles on the top of the conveyor belt by rotating the conveyor belt. When the conveyor belt rotates, multiple support rollers on the inner side thereof will support the inner side of the conveyor belt, thereby increasing the load capacity of the conveyor belt during transportation.

[0018] Furthermore, a secondary transport structure is provided, which transports the soil inside the transport pipe upward by rotating the transport rod until the soil is transported from the discharge port to the inside of the guide trough, and the soil is discharged. At the same time, the interior of the transport pipe is provided with a sealing structure, which can transport smaller particles of soil while taking into account the transportation of fluids. At the same time, through the cooperation with the main transport structure, the soil is effectively classified and transported without changing the physical and chemical properties of the soil, thereby improving the safety of the shield operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the guide trough structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the transport pipe of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the transport pipe of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the material distribution hopper of the utility model;

[0024] Figure 6 This is a schematic diagram of the driving roller structure of the utility model.

[0025] In the figure: 1. mounting frame; 2. material collecting device; 3. material distribution hopper; 4. main output port; 5. secondary output port; 6. intercepting rod; 7. transport pipe; 8. transport rod; 9. feed port; 10. discharge port; 11. guide trough; 12. support frame; 13. driving roller; 14. support roller; 15. conveyor belt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1 - Figure 6 , the utility model provides the following technical solutions:

[0029] A slag discharger for tunnel shield construction with anti-blocking function, comprising a mounting frame 1 and a material collecting device 2, wherein the mounting frame 1 is configured as a frame structure, and a plurality of symmetrically distributed support rods are fixedly connected to the top of the mounting frame 1, and the material collecting device 2 is fixedly connected to the top of the mounting frame 1;

[0030] The collecting device 2 is provided with a sub-hopper 3, a main output port 4 is provided in the middle of the sub-hopper 3, and two auxiliary output ports 5 are symmetrically provided at the bottom of the sub-hopper 3, and the main output port 4 is located between two conveyor belts 15, multiple intercepting rods 6 are fixedly connected to both sides of the sub-hopper 3, and multiple intercepting rods 6 are located at the top of the two auxiliary output ports 5, and multiple intercepting rods 6 are distributed at the same distance to form a grid structure at the top of the auxiliary output ports 5;

[0031] A transport structure for transporting slag is arranged on the top of the mounting frame 1, and the transport structure is divided into a main transport structure and an auxiliary transport structure, and two auxiliary transport structures are arranged symmetrically on both sides of the main transport structure.

[0032] The auxiliary transport structure includes a transport tube 7 fixedly connected to the top of the mounting frame 1 , and a transport rod 8 is rotatably connected inside the transport tube 7 . The transport rod 8 is a spiral structure, and the transport rod 8 is driven by a motor located at the end of the transport tube 7 .

[0033] An upwardly extending feed port 9 is provided at the top of the lower end of the transport pipe 7 , and a downwardly extending discharge port 10 is provided at the bottom of one end of the transport pipe 7 away from the feed port 9 , and both the transport rod 8 and the feed port 9 are communicated with the interior of the transport pipe 7 .

[0034] The top of the feed port 9 is fixedly connected to the bottom of the distribution hopper 3 , and the feed port 9 is aligned with the bottom of the auxiliary output port 5 . The bottom of the discharge port 10 is fixedly connected with a guide groove 11 , and the guide groove 11 is fixedly connected to the top of the mounting frame 1 .

[0035] The transport pipe 7 and the guide groove 11 form a herringbone structure, and the herringbone structure formed by the transport pipe 7 and the guide groove 11 and the mounting frame 1 form a stable triangular structure.

[0036] The main transport structure includes a support frame 12 fixedly connected to the top of the mounting frame 1 , and the inner sides of both ends of the support frame 12 are rotatably connected to driving rollers 13 , and the outer sides of the two driving rollers 13 are rotatably connected to conveyor belts 15 .

[0037] The top and bottom of the support frame 12 are fixedly connected with a plurality of equally spaced mounting seats, and a support roller 14 is rotatably connected between every two mounting seats, and the side of each support roller 14 away from the support frame 12 is in contact with the inner side of the conveyor belt 15.

[0038] Embodiment 2:

[0039] Based on the first embodiment, the specific working principle is as follows:

[0040] The anti-blocking slag discharge machine for tunnel shield construction is provided with a collecting device 2, which transports the soil cut by the shield construction to the inside of the sub-hopper 3, so that the soil enters the inside from both ends of the sub-hopper 3. In the process of the soil entering the inside of the sub-hopper 3, the soil will move from the intercepting rod 6 to the middle of the sub-hopper 3, so that the soil moves to the main transportation structure through the main output port 4. In the process of the soil moving on the intercepting rod 6, a plurality of intercepting rods 6 form a grid structure, so that when the soil passes through the top of the intercepting rod 6, the part of the soil smaller than the spacing of the intercepting rods 6 will pass through the intercepting rod 6 and then enter the transportation pipe 7, while the part of the soil larger than the spacing of the intercepting rod 6 will extend its top movement until the soil on the top of the intercepting rod 6 gathers to the inside of the main output port 4, thereby realizing automatic distinction of soil particle size. By transporting the soil particles according to the classification of the size, larger particles and smaller particles are provided with independent transportation channels to prevent blockage during soil transportation;

[0041] The larger particles of soil will move to the top of the conveyor belt 15 through the main output port 4. At this time, the conveyor belt 15 is rotated on its outer side by driving the driving roller 13 to transport the larger particles of soil on the top. When the conveyor belt 15 rotates, the multiple support rollers 14 on its inner side will support the inner side of the conveyor belt 15, thereby increasing the load capacity of the conveyor belt 15 during transportation.

[0042] Smaller particles of soil will enter the feed port 9 through the intercepting rod 6 and the auxiliary output port 5. At this time, the soil will move along the feed port 9 to the lower end of the transport pipe 7. At the same time, the motor driving the transport rod 8 is started to make the transport rod 8 rotate inside the transport pipe 7. The soil inside the transport pipe 7 is transported upward by the rotation of the transport rod 8 until the soil is transported from the discharge port 10 to the guide trough 11, and the soil is discharged. At the same time, the interior of the transport pipe 7 is set as a sealing structure. While transporting smaller particles of soil, it also takes into account the transportation of fluids. At the same time, through the cooperation with the main transport structure, the soil is effectively classified and transported without changing the physical and chemical properties of the soil, thereby improving the safety of the shield operation.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A slag discharge machine for tunnel shield construction that prevents blocking, comprising a mounting frame (1) and a material collecting device (2), wherein the mounting frame (1) is configured as a frame structure, and a plurality of symmetrically distributed support rods are fixedly connected to the top of the mounting frame (1), and the material collecting device (2) is fixedly connected to the top of the mounting frame (1); Features: The material collecting device (2) is provided with a distribution hopper (3), a main output port (4) is provided in the middle of the distribution hopper (3), and two auxiliary output ports (5) are symmetrically provided at the bottom of the distribution hopper (3), and the main output port (4) is located between two conveyor belts (15), multiple interception bars (6) are fixedly connected to both sides of the distribution hopper (3), and the multiple interception bars (6) are located at the top of the two auxiliary output ports (5), and the multiple interception bars (6) are distributed at the same distance to form a grid structure at the top of the auxiliary output ports (5); A transport structure for transporting slag is arranged on the top of the mounting frame (1), and the transport structure is divided into a main transport structure and an auxiliary transport structure, and two auxiliary transport structures are arranged symmetrically on both sides of the main transport structure.

2. The anti-blocking slag discharger for tunnel shield construction according to claim 1, characterized in that: The secondary transport structure comprises a transport tube (7) fixedly connected to the top of the mounting frame (1), and a transport rod (8) is rotatably connected inside the transport tube (7), the transport rod (8) is configured as a spiral structure, and the transport rod (8) is driven by a motor located at the end of the transport tube (7).

3. The anti-blocking slag discharger for tunnel shield construction according to claim 2, characterized in that: The top of the lower end of the transport pipe (7) is provided with a feed port (9) extending upward, and the bottom of the end of the transport pipe (7) away from the feed port (9) is provided with a discharge port (10) extending downward, and the transport rod (8) and the feed port (9) are both in communication with the interior of the transport pipe (7).

4. The anti-blocking slag discharger for tunnel shield construction according to claim 3, characterized in that: The top of the feed port (9) is fixedly connected to the bottom of the distribution hopper (3), and the feed port (9) is aligned with the bottom of the auxiliary output port (5); the bottom of the discharge port (10) is fixedly connected to a guide groove (11), and the guide groove (11) is fixedly connected to the top of the mounting frame (1).

5. The anti-blocking slag discharger for tunnel shield construction according to claim 4, characterized in that: The transport pipe (7) and the guide groove (11) form a herringbone structure, and the herringbone structure formed by the transport pipe (7) and the guide groove (11) and the mounting frame (1) form a stable triangular structure.

6. The anti-blocking slag discharger for tunnel shield construction according to claim 1, characterized in that: The main transport structure comprises a support frame (12) fixedly connected to the top of the mounting frame (1), and the inner sides of both ends of the support frame (12) are rotatably connected to driving rollers (13), and the outer sides of the two driving rollers (13) are rotatably connected to conveyor belts (15).

7. The anti-blocking slag discharger for tunnel shield construction according to claim 6, characterized in that: The top and bottom of the support frame (12) are fixedly connected to a plurality of mounting seats that are equidistantly distributed, and a support roller (14) is rotatably connected between every two mounting seats, and a side of each support roller (14) away from the support frame (12) is in contact with the inner side of the conveyor belt (15).

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