Deslagging device for tunneling construction and vertical shaft tunneling equipment

Abstract

The utility model provides a deslagging device for tunneling construction and vertical shaft tunneling equipment, the deslagging device comprises a pneumatic slag suction system, a slag suction mechanism and a grab bucket, the grab bucket is provided with a plurality of material grabbing claws distributed in the circumferential direction, and each material grabbing claw can move to open or close the grab bucket; the slag suction mechanism is provided with a slag suction opening, and the pneumatic slag suction system is connected with the slag suction mechanism through a pipeline so that the slag suction opening can generate suction force. And the slag suction mechanism is arranged in the grab bucket, and the material grabbing claws are distributed around the slag suction port, so that the technical problems of relatively low slag discharging efficiency and relatively high power consumption during vertical shaft tunneling are solved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction, in particular to a slag discharge device and shaft excavation equipment used for excavation construction. Background Art

[0002] During the shaft excavation process, the excavation depth can reach hundreds of meters, and the working conditions are particularly harsh. The existing slag discharge methods have many disadvantages and certain limitations.

[0003] Chinese invention patent application CN109139017A discloses a vertical shaft boring machine using a sedimentation method and a construction method thereof. The grab bucket can only grab the slag repeatedly, which not only fails to achieve continuous slag discharge, but also makes it difficult to grab small-size slag, resulting in incomplete slag discharge.

[0004] Chinese utility model patent CN218087878U discloses a slag discharge mechanism, a pneumatic slag discharge device and a shaft construction equipment, which discloses a pneumatic slag discharge method for a shaft, wherein the slag suction port is an open slag suction port, and the slag does not have a gathering effect. In the embodiment, the slag suction port is fixed on the excavation tool, and the slag is concentrated by the excavation tool. The existing problems are: when the excavation speed is accelerated, the slag suction port is easily blocked, and the excavation and slag discharge cannot be controlled separately, which is not flexible for the working conditions of suspending excavation and only needing to discharge slag, and inconvenient to use on site; in addition, the system has a poor effect on the transportation of fine slag at the bottom of the shaft.

[0005] Chinese invention patent application CN109667596A discloses a multi-mode tunnel bottom slag cleaning robot suitable for TBM. It mentions pneumatic slag removal, and its slag suction port utilizes an active continuous slag scraper device. The slag scraper device has high energy consumption and high power. Especially when the supply of slag stone to be discharged is insufficient, its active slag scraper still needs to run idle continuously, causing unnecessary energy waste. In addition, the solution has a complex structure and is mainly used for slag falling and scattered slag conditions at the bottom of TBM horizontal tunnels, but has poor applicability to vertical shaft conditions in narrow spaces.

[0006] In summary, the slag discharge method of shaft excavation in the prior art has technical problems of relatively low slag discharge efficiency and relatively high power consumption. Utility Model Content

[0007] The utility model aims to provide a slag discharge device and shaft excavation equipment for excavation construction, so as to solve the technical problems of low slag discharge efficiency and high power consumption in shaft excavation.

[0008] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] The utility model provides a slag discharge device for excavation construction, comprising: a pneumatic slag suction system, a slag suction mechanism and a grab bucket, the grab bucket is provided with a plurality of circumferentially distributed grab claws, each of the grab claws can move to open or close the grab bucket; the slag suction mechanism has a slag suction port, the pneumatic slag suction system is connected to the slag suction mechanism through a pipeline so that the slag suction port can generate suction; the slag suction mechanism is arranged in the grab bucket, and each of the grab claws is distributed around the slag suction port.

[0010] In a preferred embodiment, the grab claws in the grab bucket are distributed around the longitudinal axis of the grab bucket; the slag discharge device includes a telescopic mechanism, and the telescopic mechanism is connected to the slag suction mechanism to drive the slag suction mechanism to move along the longitudinal axis of the grab bucket.

[0011] In a preferred embodiment, the opening of the slag suction port is oriented along the longitudinal axis of the grab bucket.

[0012] In a preferred embodiment, the slag suction mechanism is connected to a distance detection mechanism, and the distance detection mechanism is used to detect the distance from the slag in the grab bucket.

[0013] In a preferred embodiment, the grab claw has a mounting end and a free end, and the grab claw can be rotated to make the free end approach or move away from the longitudinal axis of the grab bucket; the grab claw has a contraction portion, and the contraction portion contracts inwardly in a direction pointing to the free end when the grab bucket is closed.

[0014] In a preferred embodiment, the slag discharge device includes a lifting mechanism and a walking mechanism, the slag suction mechanism and the grab bucket are both connected to the lifting mechanism, the lifting mechanism is used to drive the slag suction mechanism and the grab bucket to perform lifting and lowering movements, the lifting mechanism is installed on the walking mechanism, and the walking mechanism is used to drive the slag suction mechanism and the grab bucket to perform translational movements.

[0015] In a preferred embodiment, the slag discharge device includes a central rotating mechanism, the walking mechanism is installed on the central rotating mechanism, and the central rotating mechanism is used to drive the slag suction mechanism and the grab bucket to perform a rotating motion.

[0016] In a preferred embodiment, the pneumatic slag suction system includes a fan, the fan is connected to the slag suction mechanism through the pipeline, and the pipeline includes a movable section.

[0017] In a preferred embodiment, the pneumatic slag suction system includes a slag storage device, and the fan, the slag storage device and the slag suction mechanism are connected in sequence through the pipeline.

[0018] The utility model provides a shaft excavation device, comprising: an excavation device and the above-mentioned slag discharge device for excavation construction, wherein the grab bucket can grab the slag at the bottom of the shaft excavated by the excavation device.

[0019] The characteristics and advantages of this utility model are:

[0020] After the grab is opened, each claw of the grab can cover a relatively large area of ​​slag. After the grab is closed, the claws gather the slag into the grab, realizing the rapid concentration of slag. The slag suction mechanism sucks the slag in the state of piled material in the grab into the slag suction port, reducing the suction of empty space and improving the slag suction efficiency. The slag suction mechanism cooperates with the grab. When the slag suction mechanism sucks slag, the grab does not move, which is conducive to reducing power consumption.

[0021] When the particle size of the slag is large, the slag is grabbed and transported by a grab, and the pneumatic slag suction system generates suction at the slag suction port to remove dust. When cleaning fine slag, the grab can be fully opened and the slag suction mechanism sucks the slag. The slag discharge device for excavation construction provided by the utility model can realize the cleaning of slag with different particle sizes, such as ordinary particle size slag, super large particle size slag and fine slag. The slag discharge device combines the slag suction mechanism with the grab, has a relatively simple structure, and occupies a small space. The slag discharge device can be applied to a vertical shaft to achieve efficient slag discharge of slag at the bottom of the vertical shaft with low power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of the state of the slag discharge device and the excavation device for excavation construction provided by the utility model when the grab bucket is opened in the shaft;

[0024] Figure 2 It is a partial cross-sectional structural diagram of a grab bucket and a slag suction mechanism in a slag discharge device for excavation construction provided by the utility model;

[0025] Figure 3 A bottom view of the grab bucket and the slag suction mechanism in the slag discharge device for excavation construction provided by the utility model when the grab bucket is opened;

[0026] Figure 4 The utility model is a schematic diagram of the state of the slag discharge device and the excavation device for excavation construction when the grab bucket is closed in the vertical shaft.

[0027] Description of Figure Numbers:

[0028] 10. Pneumatic slag suction system; 11. Fan; 12. Slag storage device; 13. Pipeline; 14. Movable section;

[0029] 20. Slag suction mechanism; 21. Slag suction port;

[0030] 30. Telescopic mechanism; 31. Distance sensor;

[0031] 40. Grab bucket; 41. Grab bucket longitudinal axis;

[0032] 50. Material grabbing claw; 51. Mounting end; 52. Free end; 53. Contraction portion;

[0033] 61. Lifting mechanism; 611. Steel wire rope;

[0034] 62. Traveling mechanism; 621. Traveling track;

[0035] 63. Center rotary mechanism; 631. Driving motor;

[0036] 64. Fixed support device;

[0037] 70. Excavation device. DETAILED DESCRIPTION

[0038] 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.

[0039] Solution 1

[0040] The utility model provides a slag discharge device for excavation construction, such as Figure 1-Figure 4 As shown, it includes: a pneumatic slag suction system 10, a slag suction mechanism 20 and a grab bucket 40, the grab bucket 40 has a plurality of circumferentially distributed grab claws 50, each grab claw 50 can move to open or close the grab bucket 40; the slag suction mechanism 20 has a slag suction port 21, the pneumatic slag suction system 10 is connected to the slag suction mechanism 20 through a pipeline 13 so that the slag suction port 21 can generate suction; the slag suction mechanism 20 is arranged in the grab bucket 40, and the grab claws 50 are distributed around the slag suction port 21.

[0041] After the grab 40 is opened, each grab claw 50 of the grab 40 can cover a relatively large area of ​​slag. After the grab 40 is closed, the grab claw 50 collects the slag into the grab 40, realizing rapid collection of the slag. The slag suction mechanism 20 sucks the slag in the pile state in the grab 40 into the slag suction port 21, reducing the suction of empty space and improving the slag suction efficiency. The slag suction mechanism 20 cooperates with the grab 40. When the slag suction mechanism 20 sucks slag, the grab 40 does not move, which is conducive to reducing power consumption.

[0042] When the particle size of the slag is large, the grab 40 is used to grab and transport the slag, and the pneumatic slag suction system 10 generates suction at the slag suction port 21 to remove dust. When cleaning fine slag, the grab 40 can be fully opened, and the slag suction mechanism 20 sucks the slag. The slag discharge device for excavation construction provided by the utility model can realize the cleaning of slag of different particle sizes such as ordinary particle size slag, super large particle size slag and fine slag. The slag discharge device combines the slag suction mechanism 20 with the grab 40, and has a relatively simple structure and occupies a small space. The slag discharge device can be applied to a vertical shaft to achieve efficient slag discharge of slag at the bottom of the vertical shaft with low power consumption.

[0043] In one embodiment, the grab claws 50 in the grab 40 are distributed around the longitudinal axis 41 of the grab; the slag discharge device includes a telescopic mechanism 30, which is connected to the slag suction mechanism 20 to drive the slag suction mechanism 20 to move along the longitudinal axis 41 of the grab. When the slag discharge device is applied to a vertical shaft, the longitudinal axis 41 of the grab is approximately in a vertical direction. The telescopic mechanism 30 can realize the vertical telescopic movement of the slag suction port 21 in the grab 40, and the slag suction height can be changed by telescopic movement. When the material level of slag in the grab 40 drops, the slag suction port 21 can drop accordingly to maintain the optimal distance from the material level, reduce the empty suction situation, and improve the slag suction efficiency. The slag suction mechanism 20 moves along the longitudinal axis 41 of the grab. Specifically, the movement direction of the slag suction mechanism 20 can be parallel to the longitudinal axis 41 of the grab or approximately parallel to the longitudinal axis 41 of the grab. In order to facilitate the movement of the slag suction mechanism 20, the pipeline 13 connected to the slag suction mechanism 20 includes a movable section 14, so that when the slag suction mechanism 20 moves vertically, the pipeline 13 can be ensured to be reliably connected to the slag suction mechanism 20. The movable section 14 can be an elastic telescopic hose arranged in the vertical direction. The telescopic mechanism 30 can be an oil cylinder arranged along the longitudinal axis 41 of the grab bucket, or an electric cylinder, or other forms of structures that can achieve telescopic movement.

[0044] Furthermore, the slag suction mechanism 20 is connected to a distance detection mechanism, which is used to detect the distance from the slag in the grab bucket 40. Through the distance monitoring mechanism, the distance between the slag suction port 21 and the slag can be monitored, so as to adjust the position of the slag suction mechanism 20 according to the monitoring distance and maintain the optimal distance from the material level. After the grab bucket 40 has finished grabbing the slag, the distance between the slag suction port 21 and the slag is detected by the distance monitoring mechanism, and then the slag suction mechanism 20 is adjusted downward to extend to the set distance through the telescopic mechanism 30 and then the slag is discharged normally, so that the slag outlet can automatically adapt to the material level of the slag in the grab bucket 40. The distance detection mechanism can be a distance sensor 31, and the distance can be detected in various forms such as ultrasonic, infrared, radar, etc.

[0045] The slag suction mechanism 20 may include a slag suction pipe, and the slag suction port 21 is an end opening of the slag suction pipe. The slag suction port 21 is placed above the inside of the grab bucket 40. Preferably, the opening direction of the slag suction port 21 is set along the longitudinal axis 41 of the grab bucket, such as Figure 1 and Figure 2 As shown, when the slag discharge device is used in a vertical shaft, the slag suction port 21 faces downward, so that the slag in the grab bucket 40 can be efficiently sucked into the slag suction port 21 .

[0046] In one embodiment, if Figure 1-Figure 3 As shown, the material grabbing claw 50 has a mounting end 51 and a free end 52, and the material grabbing claw 50 can rotate so that the free end 52 is close to or away from the longitudinal axis 41 of the grab bucket; the material grabbing claw 50 has a contraction portion 53, and the contraction portion 53 contracts inwardly in the direction pointing to the free end 52 when the grab bucket 40 is closed. When the grab bucket 40 is closed, the area surrounded by the contraction portion 53 of each grab bucket gradually shrinks in the downward direction, that is, the corresponding part of the grab bucket 40 is conical, forming a conical slag storage space, and the slag can be quickly concentrated and concentrated to the center of the grab bucket 40 by its own weight; the slag is in a conical stacking state in the grab bucket 40, which improves the slag gathering effect and slag suction efficiency. Preferably, the contraction portion 53 is located at the free end 52 of the material grabbing claw 50, that is, when the slag discharge device is used in a shaft, the contraction portion 53 is located at the lower part. Preferably, when the grab bucket 40 is closed, the whole is in a lantern shape, which is convenient for the rapid concentration of slag and enables the grab bucket 40 to accommodate more slag.

[0047] The grab bucket 40 with a conical slag storage space can realize the rapid concentration of slag and rock, and the slag and rock can continuously gather to the center by their own weight; combined with the retractable slag suction mechanism 20, the slag suction port 21 is lowered as the slag and rock decrease, which can effectively improve the slag discharge efficiency and reduce energy consumption.

[0048] The grab bucket 40 can be opened and closed by a hydraulic system, a wire rope or a winch. The specific structure of the driving method for opening and closing the grab bucket 40 can adopt the existing technology and will not be described in detail here.

[0049] In one embodiment, the slag discharge device includes a lifting mechanism 61 and a traveling mechanism 62. The slag suction mechanism 20 and the grab bucket 40 are both connected to the lifting mechanism 61. The lifting mechanism 61 is used to drive the slag suction mechanism 20 and the grab bucket 40 to perform lifting and lowering movements. The lifting mechanism 61 is installed on the traveling mechanism 62. The traveling mechanism 62 is used to drive the slag suction mechanism 20 and the grab bucket 40 to perform translational movements. Through the lifting mechanism 61 and the traveling mechanism 62, the grab bucket 40 can be moved in the shaft space to facilitate the transfer of slag. Correspondingly, the pipeline 13 includes a movable section 14. When the grab bucket 40 rises or falls together with the slag suction mechanism 20, the movable section 14 is used to compensate for the length of the pipeline 13, which can ensure that the pipeline 13 is reliably connected to the slag suction mechanism 20. The movable section 14 can be an elastic telescopic hose arranged in the vertical direction.

[0050] The grab bucket 40, the slag suction mechanism 20 and the lifting mechanism 61 can cooperate to carry out slag discharge. The grab bucket 40 is first kept in an open state, and then the grab bucket 40 is driven by the lifting mechanism 61 to descend to the slag layer and then slowly closed, and the slag is caught in the grab bucket 40; then, the lifting mechanism 61 drives the grab bucket 40 to rise a certain distance, and the slag suction mechanism 20 extends downward to keep the slag suction port 21 at a suitable distance from the slag, and the slag suction port 21 absorbs the slag; when the slag is completely sucked, the slag suction mechanism 20 retracts and the grab bucket 40 opens; the lifting mechanism 61 drives the grab bucket 40 to descend to the slag again, and the above-mentioned slag suction process is repeated.

[0051] Furthermore, the slag discharge device includes a central rotating mechanism 63, and the traveling mechanism 62 is installed on the central rotating mechanism 63. The central rotating mechanism 63 is used to drive the slag suction mechanism 20 and the grab bucket 40 to perform a rotating motion. Through the rotating motion and the translational motion, the grab bucket 40 and the slag suction mechanism 20 can cover the entire excavation surface. Under the shaft working condition, the traveling mechanism 62 drives the slag suction mechanism 20 and the grab bucket 40 to move in the horizontal direction, and the central rotating mechanism 63 drives the slag suction mechanism 20 and the grab bucket 40 to move in the circumferential direction, so as to achieve full coverage of the shaft excavation surface. The slag discharge device can transfer the slag from the excavation surface to the outside of the main engine section, and the fan 11 and the slag storage tank outside the main engine section do not need to move.

[0052] like Figure 1 As shown, a central rotating mechanism 63 is provided in the middle section of the pipeline 13, and the pipeline 13 is connected to the central rotating mechanism 63, and the central rotating mechanism 63 can rotate in the circumferential direction. The central rotating mechanism 63 can be driven by a combination of a motor and a gear, or by a combination of a motor and a transmission belt. Figure 1 As shown, a fixed support device 64 is disposed above the central rotating mechanism 63 , and a channel corresponding to the central rotating mechanism 63 for the pipeline 13 to pass through is disposed at the center of the fixed support device 64 . The pipeline 13 passes through the channel and extends upward to the pneumatic slag suction system 10 .

[0053] Specifically, in the horizontal direction, a traveling mechanism 62 is provided, and the traveling mechanism 62 can adopt a transmission structure such as a gear rack or a driving trolley, and the traveling mechanism 62 can drive the grab bucket 40, the slag suction mechanism 20 and part of the pipeline 13 to move horizontally together. Accordingly, the pipeline 13 includes a movable section 14, and when the grab bucket 40 and the slag suction mechanism 20 move horizontally together, the movable section 14 is used to compensate for the length of the pipeline 13 to ensure that the pipeline 13 and the slag suction mechanism 20 are reliably connected. The movable section 14 can adopt an elastic telescopic hose arranged in the horizontal direction.

[0054] In one embodiment, the pneumatic slag suction system 10 includes a fan 11, which is connected to the slag suction mechanism 20 through a pipeline 13, and the pipeline 13 includes a movable section 14. When the fan 11 is working, the airflow is driven to flow from the slag suction port 21 along the pipeline 13 to the fan 11. The pneumatic slag suction system 10 can be arranged outside the main machine section, and the movable section 14 of the pipeline 13 can play a compensatory role. When the walking mechanism 62 drives the slag suction mechanism 20 and the grab bucket 40 to move in the horizontal direction, and when the lifting mechanism 61 drives the slag suction mechanism 20 and the grab bucket 40 to rise and fall, the pneumatic slag suction system 10 does not need to move.

[0055] Furthermore, the pneumatic slag suction system 10 includes a slag storage device 12, and the fan 11, the slag storage device 12 and the slag suction mechanism 20 are sequentially connected through the pipeline 13. The slag suction port 21, the pipeline 13, the slag storage device 12 and the fan 11 cooperate to perform pneumatic slag suction, the fan 11 is the power source, the pipeline 13 is the slag conveying channel, the slag storage device 12 stores the sucked slag, and the continuous slag suction through the slag suction port 21 can complete the continuous conveying of slag. When sucking slag, the slag passes through the slag suction port 21, the elastic telescopic tube, the central rotating mechanism 63, the fixed support device 64, and the pipeline 13 into the slag storage device 12, and the slag is stored in the slag storage device 12; and the airflow enters the fan 11 through the slag storage device 12 and is discharged to the atmosphere. Specifically, the slag storage device 12 can adopt a slag storage tank. The slag storage device 12 and the fan 11 can be placed on the ground or on a vertical shaft platform. The slag in the slag storage device 12 is subsequently transported outward by other means such as a bucket or a truck.

[0056] The slag discharge device for tunneling construction of the utility model is suitable for shaft working conditions, can quickly concentrate slag and stone and can continuously concentrate them to the center by their own weight, and can perform pneumatic transportation, so as to realize efficient slag discharge under shaft working conditions, and can be independently controlled, can discharge slag continuously, and can clean up the fine slag at the bottom of the shaft; moreover, the overall structure is simple, and the power is smaller, the energy consumption is lower, and the dust is smaller than that of the front active slag scraping and suction structure. The slag discharge device for excavation construction of the utility model has the following advantages: (1) the structure is simple, but it can adapt to various working conditions such as fine slag, slag of ordinary particle size and slag of super large particle size; (2) it does not need a continuous active slag feeding mechanism at the front end, and can rely on the conical grab 40 to achieve self-concentration of slag; (3) the slag suction mechanism 20 is used to perform telescopic movement, which can reduce the suction volume, improve the slag discharge efficiency, and can significantly save energy; (4) the pneumatic slag suction system 10 can be used to continuously discharge slag and clean the slag more thoroughly, and there is no need to wait for the slag discharge; (5) the dust is significantly reduced during the slag discharge process; (6) through the slag discharge device, energy saving and high efficiency can be improved, construction costs can be saved, and construction efficiency can be improved.

[0057] The slag discharge device for excavation construction of the utility model is not limited to the vertical shaft working condition, but can also be used in other working conditions, such as the excavation of a horizontal tunnel.

[0058] The opening and closing of the grab bucket 40, the driving of the telescopic mechanism 30, the lifting mechanism 61, the horizontal walking mechanism 62, and the central rotating mechanism 63 can be realized in various ways such as electric, hydraulic, and pneumatic.

[0059] Solution 2

[0060] The utility model provides a shaft excavation equipment, including: an excavation device 70 and the above-mentioned slag discharge device for excavation construction, and a grab 40 can grab the slag at the bottom of the shaft excavated by the excavation device 70. The shaft excavation equipment has all or at least part of the features and beneficial effects of the above-mentioned slag discharge device, which will not be repeated here.

[0061] like Figure 1 and Figure 4 As shown, the working steps of the shaft excavation equipment working in the shaft include:

[0062] S11, first, the excavation device 70 excavates normally, the fan 11 remains turned on, and the slag suction port 21 is retracted to the uppermost position through the telescopic mechanism 30, and then the grab bucket 40 is lifted as a whole through the lifting mechanism 61 and the wire rope 611, and lifted to a certain height from the bottom of the well.

[0063] S12, determine the position of the slag stone to be discharged, then start the drive motor 631 of the central rotating mechanism 63, and control the rotation angle of the central rotating mechanism 63 after gear transmission; start the horizontal walking mechanism 62, control the moving distance of the horizontal walking mechanism 62 along the walking track 621, and move the grab bucket 40 to the top of the slag stone to be discharged.

[0064] S13, then, control the grab bucket 40 to be fully opened; control the lifting mechanism 61, and lower the grab bucket 40 to the slag and stone position through the wire rope 611; then control the grab bucket 40 to be fully closed. At this point, the slag and stone to be discharged are quickly concentrated, and the slag and stone are in a conical pile state in the grab bucket 40.

[0065] S14, after the slag and stone are completely grabbed, the distance between the slag suction port 21 and the slag and stone is detected by the distance sensor 31 installed at the slag suction port 21, and then the slag suction port 21 is adjusted downward to extend to the set distance through the telescopic mechanism 30, and the slag is discharged normally.

[0066] Steps S11, S12, S13, and S14 are normal slag discharge modes. In the slag discharge process of step S14, the slag passes through the slag suction port 21, the elastic telescopic tube, the central rotary mechanism 63, the fixed support device 64, and the pipeline 13 into the slag storage device 12, and the slag is stored in the slag storage device 12; and the airflow passes through the slag storage device 12 into the fan 11 and is discharged to the atmosphere.

[0067] When encountering oversized slag, the following work steps can be used:

[0068] S21, on the basis of the normal slag discharge mode, the frequency of the fan 11 is reduced, and the fan 11 and the slag storage device 12 are used as dust removal devices for dust removal in the well.

[0069] S22, then, retract the telescopic mechanism 30 to the uppermost position, while the grab bucket 40 grabs the slag normally, and the grab bucket 40 is shifted by controlling the rotation angle of the central rotating mechanism 63 and the moving distance of the horizontal walking mechanism 62, so that the slag in the grab bucket 40 falls into the bucket (through the bucket that falls to the bottom of the well outside the well), and is lifted outside the well to realize the slag discharge of large-diameter slag.

[0070] When it is necessary to clean the fine slag at the bottom of the well, the following working steps can be adopted:

[0071] S31, the grab bucket 40 remains fully opened, the telescopic mechanism 30 extends the slag suction port 21 to a certain length, and the grab bucket 40 is lowered by controlling the lifting mechanism 61. The distance sensor 31 installed at the slag suction port 21 detects the distance between the slag suction port 21 and the slag stone. When the set distance is reached, the grab bucket 40 stops descending and the slag is discharged normally.

[0072] S32, by controlling the rotation angle of the central rotating mechanism 63 and the moving distance of the horizontal walking mechanism 62, the fine slag cleaning of the entire bottom of the well can be achieved.

[0073] The vertical shaft excavation equipment provided by the utility model can realize the slag cleaning of slag stones with different particle sizes, such as ordinary particle size slag stones, super large particle size slag stones and fine slag stones during vertical shaft excavation. The slag stones to be discharged have better gathering effect, higher slag suction efficiency and lower power consumption, thereby realizing efficient slag discharge.

[0074] The above are only several embodiments of the present invention. Those skilled in the art can make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A slag discharge device for excavation construction, characterized in that: include: A pneumatic slag suction system, a slag suction mechanism, a grab bucket and a telescopic mechanism, wherein the grab bucket has a plurality of circumferentially distributed grab claws, each of which can move to open or close the grab bucket; The slag suction mechanism has a slag suction port, and the pneumatic slag suction system is connected to the slag suction mechanism through a pipeline so that the slag suction port can generate suction; the slag suction mechanism is arranged in the grab bucket, and the grab claws are distributed around the slag suction port; The grab claw has a contraction portion, and when the grab bucket is closed, the area surrounded by the contraction portion of each grab bucket gradually shrinks in the downward direction to form a conical slag storage space; The telescopic mechanism is used to change the height of the slag suction port by telescoping.

2. The slag discharge device for excavation construction according to claim 1, characterized in that: The material grabbing claws in the grab bucket are distributed around the longitudinal axis of the grab bucket; the telescopic mechanism is connected to the slag suction mechanism to drive the slag suction mechanism to move along the longitudinal axis of the grab bucket.

3. The slag discharge device for excavation construction according to claim 2, characterized in that: The opening direction of the slag suction port is arranged along the longitudinal axis of the grab bucket.

4. The slag discharge device for excavation construction according to claim 3, characterized in that: The slag suction mechanism is connected to a distance detection mechanism, and the distance detection mechanism is used to detect the distance from the slag in the grab bucket.

5. The slag discharge device for excavation construction according to claim 2, characterized in that: The material grabbing claw has a mounting end and a free end, and the material grabbing claw can be rotated to make the free end approach or move away from the longitudinal axis of the grab bucket; The contraction portion contracts inwardly in a direction toward the free end when the grab is closed.

6. The slag discharge device for excavation construction according to claim 1, characterized in that: The slag discharge device includes a lifting mechanism and a walking mechanism. The slag suction mechanism and the grab bucket are both connected to the lifting mechanism. The lifting mechanism is used to drive the slag suction mechanism and the grab bucket to perform lifting and lowering movements. The lifting mechanism is installed on the walking mechanism. The walking mechanism is used to drive the slag suction mechanism and the grab bucket to perform translational movements.

7. The slag discharge device for excavation construction according to claim 6, characterized in that: The slag discharge device comprises a central rotating mechanism, the walking mechanism is installed on the central rotating mechanism, and the central rotating mechanism is used to drive the slag suction mechanism and the grab bucket to perform a rotating motion.

8. The slag discharge device for excavation construction according to claim 1, characterized in that: The pneumatic slag suction system comprises a fan, and the fan is connected to the slag suction mechanism through the pipeline, and the pipeline comprises a movable section.

9. The slag discharge device for excavation construction according to claim 8, characterized in that: The pneumatic slag suction system comprises a slag storage device, and the fan, the slag storage device and the slag suction mechanism are connected in sequence through the pipeline.

10. A shaft excavation device, characterized in that: include: An excavation device and a slag discharge device for tunneling construction as described in any one of claims 1 to 9, wherein the grab bucket is capable of grabbing slag and rock at the bottom of the vertical shaft excavated by the excavation device.

Images