Slag receiving and discharging device for tunnel boring construction
By designing a slag receiving and unloading device for tunnel excavation, and utilizing a screening mechanism and drive components, the slag and soil can be screened and transported separately, solving the problem that mixed transport of slag and soil cannot be reused, thus improving transportation efficiency and the convenience of reuse.
Patent Information
- Application Number
- CN202520638926.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-07
AI Technical Summary
During tunnel excavation, the mixed transportation of slag and excavated soil makes it impossible to reuse them directly, increasing the cost of subsequent projects.
A slag receiving and unloading device for tunnel excavation construction was designed, including a slag receiving frame, a slag receiving hopper, a screening mechanism and a drive assembly. Through the horizontal reciprocating swaying of the screen plate and the design of the inclined bottom screen plate, the slag and soil are screened and transported separately.
It enables the screening of slag and waste soil, facilitating secondary utilization, reducing labor and material costs, and improving transportation efficiency.
Smart Images
Figure CN223906144U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tunnel excavation technical field, concretely is a kind of tunnel excavation construction is connected with slag unloading device. BACKGROUND
[0002] In the tunnel excavation process, the slag and spoil after excavation are transported to the ground by belt conveyor, and are transmitted to the fixed discharge hopper at the tail of the belt conveyor, after the discharge hopper is fully loaded, the discharge port at the bottom end of the discharge hopper is opened, the slag and spoil will be poured into the loading vehicle waiting under the discharge hopper, and are transported to the unloading site or other secondary use site by the loading vehicle.
[0003] However, practice shows that the slag and spoil excavated from the tunnel are directly transported to the ground by the belt conveyor without preliminary screening, and the mixed transportation mode leads to that the slag and spoil cannot be directly utilized secondarily, and when secondary utilization is required, the slag and spoil need to be screened again, which increases the cost of manpower and material resources for subsequent engineering.
[0004] Therefore, it is necessary to invent a tunnel excavation construction connected with slag unloading device to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model discloses a tunnel excavation construction connected with slag unloading device to solve the problem that the slag and spoil are mixed and transported in the existing tunnel excavation process, cannot be directly utilized secondarily.
[0006] The utility model is implemented by the following technical scheme:
[0007] A tunnel excavation construction connected with slag unloading device, which comprises a slag receiving frame fixed on the ground, a slag receiving hopper fixedly installed at the upper end of the slag receiving frame, a slag discharge port formed at the bottom end of the slag receiving hopper, a sector gate rotatably installed at the slag discharge port, an oil cylinder installed on the side wall of the slag receiving hopper, and a piston end of the oil cylinder movably connected with the sector gate; a screening mechanism movably installed inside the slag receiving hopper.
[0008] The screening mechanism comprises a first screen plate and a second screen plate rotatably installed at the top end of the slag receiving hopper, and a bottom screen plate rotatably connected at the bottom end of the first screen plate and the second screen plate, wherein the bottom screen plate is located inside the slag receiving hopper and is inclined, the side edges of the first screen plate and the second screen plate are in contact with the inner side wall of the slag receiving hopper, and a driving assembly for driving the first screen plate and the second screen plate to horizontally reciprocate and shake is installed on the inner side wall of the slag receiving hopper.
[0009] Further, the driving assembly comprises an encapsulation box fixedly installed on the inner side wall of the slag receiving hopper, a ring movably installed in the encapsulation box, an upper rack and a lower rack integrally fixed to the inner top end and the inner bottom end of the ring respectively, a sector gear rotatably installed in the ring and meshedly connected with the upper rack and the lower rack, two extension rods integrally fixed to the two sides of the ring and extending out of the encapsulation box and movably connected with the first screen plate and the second screen plate respectively, and a driving motor installed in the encapsulation box and fixedly connected with the sector gear.
[0010] Further, the side end of the slag receiving hopper and opposite to the position of the bottom screen plate is provided with a discharge port, the position of the bottom screen plate towards the discharge port is inclined, and a lifting gate is installed at the discharge port.
[0011] The lifting gate comprises a clamping groove fixedly installed on the outer side end of the slag receiving hopper and semi-surrounding the discharge port, a lifting plate clamped in the clamping groove, a mounting plate fixedly installed on the outer side end of the slag receiving hopper and located at the upper end of the discharge port, and an oil cylinder two installed on the mounting plate and fixedly connected with the top end of the lifting plate.
[0012] Further, the end of the extension rod is fixedly connected with a strong spring, and the other end of the strong spring is fixedly connected with the first screen plate or the second screen plate.
[0013] Further, the number of the sector gates is two and the number of the oil cylinders is two; a fixed seat is fixedly installed on the side wall of the slag receiving hopper, the base of the oil cylinder is rotatably connected with the fixed seat through a pin shaft, the bottom end of the sector gate is hingedly connected with a connecting rod, and the end of the connecting rod is rotatably connected with the piston end of the oil cylinder.
[0014] Further, a plurality of screen holes are formed in the first screen plate, the second screen plate and the bottom screen plate.
[0015] The outer side end of the slag receiving hopper is provided with a U-shaped guide groove corresponding to the position of the discharge port.
[0016] The structure of the utility model is reasonable and reliable, realizes the screening of the slag stones and the slag soil excavated in the tunnel excavation process and the separate transportation of the screened slag stones and the slag soil, facilitates the secondary use of the slag stones and the slag soil, and utilizes the simple and convenient slag receiving and discharging device to complete the screening and transportation of the slag stones and the slag soil. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the structure schematic view of the utility model.
[0018] Figure 2 It is the structure schematic view of the sector gate in the utility model.
[0019] Figure 3It is the internal structure schematic view of the slag receiving hopper in the utility model.
[0020] Figure 4 It is the internal structure schematic view of the packaging box in the utility model.
[0021] In the drawing: 1-ground, 2-slag receiving frame, 3-slag receiving hopper, 4-fan-shaped gate, 5-oil cylinder, 6-sieve plate one, 7-sieve plate two, 8-bottom sieve plate, 9-packaging box, 10-ring, 11-upper rack, 12-lower rack, 13-fan-shaped gear, 14-extension rod, 15-discharge port, 16-sieve hole, 17-fixing seat. DETAILED DESCRIPTION
[0022] A kind of tunnel excavation construction is used to receive slag and discharge device, as shown in Figure Figure 1 -attached Figure 3 As shown in Figure, including fixed on ground 1 on slag receiving frame 2, the upper end of slag receiving frame 2 is fixedly installed with slag receiving hopper 3, the bottom end of slag receiving hopper 3 is provided with slag discharge port, slag discharge port is rotatably installed with fan-shaped gate 4, the sidewall of slag receiving hopper 3 is installed with oil cylinder 5, the piston end of oil cylinder 5 is movably connected with fan-shaped gate 4;The inside of slag receiving hopper 3 is movably installed with screening mechanism;
[0023] The screening mechanism includes sieve plate one 6 and sieve plate two 7 rotatably installed at the top end of slag receiving hopper 3 respectively, the bottom end of sieve plate one 6 and sieve plate two 7 is rotatably connected with bottom sieve plate 8, bottom sieve plate 8 is located in the inside of slag receiving hopper 3, and bottom sieve plate 8 is inclined, the side edge of sieve plate one 6 and sieve plate two 7 is in contact with the inside wall of slag receiving hopper 3, and the inside wall of slag receiving hopper 3 is installed with driving assembly for driving sieve plate one 6 and sieve plate two 7 to horizontally reciprocate.
[0024] The utility model is used for screening and transporting the slag stone and slag soil excavated in the process of tunnel excavation, and the secondary use of slag stone and slag soil is convenient, and the simple and convenient slag receiving and discharging device is used to complete the screening and transportation of slag stone and slag soil, wherein, the slag receiving frame 2 is installed outside the tunnel, the bottom end of the slag receiving frame 2 can allow the loading vehicle to enter and exit, and the loading vehicle is used for transporting the slag stone or slag soil;The tunnel and the slag receiving frame 2 are connected by a belt conveyor, the slag stone and slag soil are conveyed into the slag receiving hopper 3 by the belt conveyor, and after being screened by the screening mechanism in the slag receiving hopper 3, the slag soil is discharged from the slag discharge port into the waiting loading vehicle.
[0025] In the screening mechanism, the driving assembly is used to drive sieve plate one 6 and sieve plate two 7 to horizontally reciprocate, and simultaneously drive bottom sieve plate 8 to horizontally reciprocate, so that the slag soil can enter the bottom of slag receiving hopper 3 through bottom sieve plate 8, and the slag soil with large volume is left on the upper surface of bottom sieve plate 8, and due to the inclination of bottom sieve plate 8, the slag stone rolls to the inclined bottom end under the action of its own gravity and shaking, so as to prepare for discharging and not affect the screening of the slag stone and slag soil entering the slag receiving hopper 3.
[0026] The existing slag discharging device cannot screen slag stones and slag soil, and the slag stones and slag soil are convenient for secondary utilization.
[0027] As shown in the accompanying Figure 4 The driving assembly comprises an encapsulation box 9 fixedly installed on the inner side wall of the slag receiving hopper 3, a ring 10 movably installed in the encapsulation box 9, an upper gear rack 11 and a lower gear rack 12 integrally fixed to the inner top end and the inner bottom end of the ring 10 respectively, a sector gear 13 rotatably installed in the ring 10, the sector gear 13 being in meshing connection with the upper gear rack 11 and the lower gear rack 12, two extension rods 14 integrally fixed to the two sides of the ring 10 and extending out of the encapsulation box 9 and movably connected with the first screen plate 6 and the second screen plate 7 respectively, a driving motor installed in the encapsulation box 9 and located on the inner side wall of the slag receiving hopper 3, and an output shaft of the driving motor fixedly connected with the sector gear 13.
[0028] In the driving assembly, the driving motor drives the sector gear 13 to rotate, when the toothed part of the sector gear 13 rotates to the upper gear rack 11, the sector gear 13 is in meshing connection with the upper gear rack 11, driving the upper gear rack 11 and the ring 10 to move horizontally, and further driving the extension rods 14 and the first screen plate 6 or the second screen plate 7 to move horizontally, when the toothed part of the sector gear 13 rotates to the lower gear rack 12, the sector gear 13 is in meshing connection with the lower gear rack 12, driving the lower gear rack 12 and the ring 10 to move reversely horizontally, and further driving the extension rods 14 and the first screen plate 6 or the second screen plate 7 to move reversely horizontally, so as to realize the reciprocating shaking of the first screen plate 6, the second screen plate 7 and the bottom screen plate 8, and realize the screening of the slag soil and the slag stones.
[0029] As shown in the accompanying Figure 3 The side end of the slag receiving hopper 3 and the position opposite to the bottom screen plate 8 are provided with a discharging port 15, the position of the bottom screen plate 8 facing the discharging port 15 is inclined, and a lifting gate is installed at the discharging port 15.
[0030] The lifting gate comprises a clamping groove fixedly installed on the outer side end of the slag receiving hopper 3 and half-encircling the discharging port 15, a lifting plate clamped in the clamping groove, a mounting plate fixedly installed on the outer side end of the slag receiving hopper 3 and located at the upper end of the discharging port 15, an oil cylinder II installed on the mounting plate, and a piston end of the oil cylinder II fixedly connected with the top end of the lifting plate.
[0031] Since the bottom screen plate 8 is inclined, when the slag stones gather at the inner bottom end of the bottom screen plate 8 under the action of the self-gravity and the shaking, the oil cylinder II is started, the piston end of the oil cylinder II drives the lifting plate to move upward, at this time, the discharging port 15 is gradually opened, the slag stones are discharged through the discharging port 15 under the action of the self-gravity and the shaking, and fall into the waiting loading vehicle.
[0032] In the process of tunneling, the belt conveyor is also continuously working, so the slag and the slag soil are continuously output, at this time, the discharge port 15 will be closed and opened in the gap of replacing the loading vehicle, so the slag will not be accumulated in the inner bottom end of the bottom sieve plate 8 for a long time, and the bearing capacity of the bottom sieve plate 8 is not affected.
[0033] The end of the extension rod 14 is fixedly connected with a strong spring, and the other end of the strong spring is fixedly connected with the sieve plate one 6 or the sieve plate two 7.
[0034] The strong spring has certain energy storage and deformation capacity, which can act as a damping effect to reduce potential energy when changing direction and protect the sieve plate one 6 and the sieve plate two 7; and the sieve plate one 6 and the sieve plate two 7 will inevitably swing the extension rod 14 in the process of swinging, and the deformation capacity of the strong spring can avoid the swinging of the extension rod 14, so as to ensure the horizontal movement of the ring 10.
[0035] As shown in the accompanying drawings, the sieve plate one 6 and the sieve plate two 7 are fixedly connected with the extension rod 14, and the extension rod 14 is rotatably connected with the ring 10. Figure 2 The number of the sector gate 4 is relatively two, and the number of the oil cylinder 5 is correspondingly two; the side wall of the slag receiving hopper 3 is fixedly provided with a fixed seat 17, the base of the oil cylinder 5 is rotatably connected with the fixed seat 17 through a pin shaft, the bottom end of the sector gate 4 is hingedly provided with a connecting rod, and the end of the connecting rod is rotatably connected with the piston end of the oil cylinder 5.
[0036] When the slag soil enters the bottom of the slag receiving hopper 3 through the bottom sieve plate 8, the oil cylinder 5 is started, the piston of the oil cylinder 5 drives the connecting rod and the sector gate 4 to rotate, at this time, the slag discharge port is opened, and the slag soil is unloaded into the waiting loading vehicle.
[0037] In the process of tunneling, the belt conveyor is also continuously working, so the slag and the slag soil are continuously output, at this time, the discharge port 15 will be closed and opened in the gap of replacing the loading vehicle, so the slag will not be accumulated in the inner bottom end of the bottom sieve plate 8 for a long time, and the bearing capacity of the bottom sieve plate 8 is not affected.
[0038] In the utility model, the opening and closing of the slag discharge port and the discharge port 15 are realized through the oil cylinder, the staff can control the hydraulic switch through the controller, and safe and labor-saving unloading is realized.
[0039] As shown in the accompanying drawings, the sieve plate one 6, the sieve plate two 7 and the bottom sieve plate 8 are all provided with a plurality of sieve holes 16. Figure 3 In the process of tunneling, the size of the slag crushed by the shield machine is usually equal, so the size and density of the sieve hole 16 can be set according to the volume of the slag, so as to achieve the best efficiency of screening.
[0040] The outer side end of the slag receiving hopper 3 is provided with a U-shaped guide groove, and the U-shaped guide groove corresponds to the position of the discharge port 15.
[0041]
[0042] The U-shaped guide groove is used for guiding the slag stones to enter the loading vehicle smoothly, and avoiding the slag stones from splashing aside.
[0043] When the belt conveyor starts to work, the screening mechanism is started synchronously, the sieve plate one 6, the sieve plate two 7 and the bottom sieve plate 8 start to swing horizontally, when the slag and the slag soil enter the slag receiving hopper 3 through the belt conveyor, the slag soil enters the bottom of the slag receiving hopper 3 through the sieve hole 16, and the oil cylinder 5 is started to drive the sector gate 4 to open, so that the slag soil is unloaded into the waiting loading vehicle, after the loading vehicle is filled, the oil cylinder 5 drives the sector gate 4 to close, and the next loading vehicle is waited to be in place; since the bottom sieve plate 8 is inclined, the large slag stones roll to the inner bottom end of the bottom sieve plate 8 under the influence of gravity and the shaking force, the lifting gate is started to open the discharge port 15, the slag stones are unloaded into the waiting loading vehicle through the discharge port 15 and the U-shaped guide groove, after the loading vehicle is filled, the oil cylinder two drives the discharge port 15 to close, and the next loading vehicle is waited to be in place.
[0044] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.
[0045] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A tunnel excavation construction joint residue discharging device, characterized in that: Includes a slag receiving frame (2) fixed on the ground (1), a slag receiving hopper (3) fixedly installed at the upper end of the slag receiving frame (2), a slag outlet at the bottom end of the slag receiving hopper (3), a fan-shaped gate (4) rotatably installed at the slag outlet, a hydraulic cylinder (5) installed on the side wall of the slag receiving hopper (3), and the piston end of the hydraulic cylinder (5) movably connected to the fan-shaped gate (4); a screening mechanism is movably installed inside the slag receiving hopper (3); The screening mechanism includes a first screen plate (6) and a second screen plate (7) rotatably mounted on the top of the slag receiving hopper (3). The bottom ends of the first screen plate (6) and the second screen plate (7) are rotatably connected to a bottom screen plate (8). The bottom screen plate (8) is located inside the slag receiving hopper (3) and is inclined. The sides of the first screen plate (6) and the second screen plate (7) are in close contact with the inner wall of the slag receiving hopper (3). A drive assembly for driving the first screen plate (6) and the second screen plate (7) to reciprocate horizontally is installed on the inner wall of the slag receiving hopper (3).
2. The joint residue unloading device for tunnel excavation construction according to claim 1, characterized in that: The drive assembly includes a sealing box (9) fixedly installed on the inner wall of the slag receiving hopper (3). A ring (10) is movably installed inside the sealing box (9). An upper rack (11) and a lower rack (12) are integrally fixed to the inner top and inner bottom of the ring (10), respectively. A sector gear (13) located inside the ring (10) is rotatably installed inside the sealing box (9). The sector gear (13) is meshed with both the upper rack (11) and the lower rack (12). An extension rod (14) is integrally fixed on both sides of the ring (10). The two extension rods (14) extend out of the sealing box (9) and are movably connected to the screen plate one (6) and screen plate two (7) on both sides, respectively. A drive motor located on the inner wall of the slag receiving hopper (3) is installed inside the sealing box (9). The output shaft of the drive motor is fixedly connected to the sector gear (13).
3. The joint residue unloading device for tunnel excavation construction according to claim 1, characterized in that: The slag receiving hopper (3) has a discharge port (15) at its side end and opposite to the bottom screen plate (8). The bottom screen plate (8) is inclined toward the discharge port (15), and a lifting gate is installed at the discharge port (15). The lifting gate includes a slot fixedly installed on the outer end of the slag receiving hopper (3) and partially surrounding the discharge port (15). A lifting plate is engaged in the slot. An installation plate is fixedly installed on the outer end of the slag receiving hopper (3) and at the upper end of the discharge port (15). A second hydraulic cylinder is installed on the installation plate. The piston end of the second hydraulic cylinder is fixedly connected to the top of the lifting plate.
4. The joint residue unloading device for tunnel excavation construction according to claim 2, characterized in that: The end of the extension rod (14) is fixedly connected to a strong spring, and the other end of the strong spring is fixedly connected to either sieve plate one (6) or sieve plate two (7).
5. The joint residue unloading device for tunnel excavation construction according to claim 1, characterized in that: The number of the fan-shaped gates (4) is two opposite to each other, and the number of the oil cylinders (5) is two opposite to each other; a fixed seat (17) is fixedly installed on the side wall of the slag receiving hopper (3), the base of the oil cylinder (5) is rotatably connected to the fixed seat (17) by a pin, and a connecting rod is hinged to the bottom end of the fan-shaped gate (4), and the end of the connecting rod is rotatably connected to the piston end of the oil cylinder (5).
6. The jointing and discharging device for tunnel construction according to claim 1, characterized in that: Several sieve holes (16) are provided on the first sieve plate (6), the second sieve plate (7) and the bottom sieve plate (8).
7. The joint residue unloading device for tunnel excavation construction according to claim 3, characterized in that: The outer side end of the slag receiving hopper (3) is provided with a U-shaped guide groove corresponding to the position of the discharge port (15).