Detachable unearthed gushing prevention device

Abstract

The utility model relates to a detachable unearthed gushing prevention device which comprises an upper gate, a lower gate, a slag discharging bin and a detachable partition plate, the top of the slag discharging bin is an inclined plane, and the angle of the inclined plane corresponds to the inclination angle of a screw conveyor body; the upper gate is slidably opened and closed at the top of the deslagging bin; the lower gate is slidably opened and closed at the bottom of the deslagging bin. The device has the advantages that the device is easy to manufacture and stable in structure, gushing is effectively prevented, the stability of ground surface settlement is guaranteed, the construction safety coefficient is improved, the multiple layers of detachable partition plates are arranged in the slag discharging bin in a staggered mode to form the labyrinth structure, impact force generated during gushing of the spiral machine soil outlet can be reduced, and the service life of the spiral machine soil outlet is prolonged. On-site gushing is prevented; the hole without the detachable partition plate is sealed through the sealing auxiliary component matched with the internal component of the detachable partition plate, the sealing ring is arranged to ensure that the hole of the deslagging bin is sealed, and muck or water is prevented from being discharged from the hole in one side of the deslagging bin.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, and in particular comprises a detachable excavation anti-spurting device. Background Art

[0002] During shield tunnel construction, we often encounter strata with high water content or water-rich fault zones, rivers, etc., especially in southern cities in my country. Water-rich strata have high water content and high plasticity. If there is a lot of groundwater flowing into the soil bin, it will gush out to the excavation port through the screw machine, affecting the normal operation of the shield machine. In serious cases, it may cause the instability of the excavation face and the risk of flooding the shield machine and the tunnel.

[0003] The conventional solution to the gushing of the screw machine is to improve the slag. In the prior art, bentonite is usually used to improve the consistency and water-stopping properties of the slag, that is, the slag is improved when it enters the screw machine. However, in the actual construction process, it cannot be guaranteed that the gushing problem will be completely solved. When the slag improvement effect at the screw machine feed port is not good, the slag entering the screw machine has a large water content, and the gushing problem will still occur. In response to the gushing problem at the screw machine discharge port, the common designs that still exist are: 1) Two gates are set at the screw machine discharge port to form a cavity between the gates, and the gushing is prevented by opening and closing the gates, but there is still a risk of gushing; 2) Adding multiple partitions in the cavity can effectively reduce the risk of gushing at the discharge port, but under normal slag discharge conditions, the partitions will hinder the outflow of slag and cause blockage. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a detachable excavation anti-spurting device.

[0005] The detachable excavation anti-gushing device comprises: an upper gate, a lower gate, a slag discharge bin and a detachable partition, the top of the slag discharge bin is an inclined surface, and the angle of the inclined surface corresponds to the inclination angle of the screw machine body; the upper gate slides open and close at the top of the slag discharge bin; the lower gate slides open and close at the bottom of the slag discharge bin;

[0006] There are several layers of removable partitions in the slag discharge bin, which are staggered to form a maze structure;

[0007] The removable partition includes a removable partition internal component and a partition. Several holes are provided on one side of the slag discharge bin, and each hole corresponds to a removable partition internal component; one end of the partition and the removable partition internal component are connected through a mortise and tenon structure, and the partition is inserted into the slag discharge bin through the hole, and the removable partition internal component abuts against the inner wall on the side opposite to the hole of the slag discharge bin, and one end of the partition is exposed outside the hole.

[0008] Preferably, the internal component of the removable partition is L-shaped, the horizontal end of the internal component of the removable partition is connected to the partition by a mortise and tenon structure, the shape of the hole and the horizontal end of the internal component of the removable partition match, and when the vertical end of the internal component of the removable partition is in contact with the inner wall of one side of the slag discharge bin with the hole, the horizontal end extends out of the slag discharge bin from the hole.

[0009] Preferably, there is also a closed auxiliary component that cooperates with the removable partition internal component. Each removable partition internal component is selectively connected to a partition or a closed auxiliary component. When the removable partition internal component is connected to the closed auxiliary component, the vertical end of the removable partition internal component is in contact with the inner wall of one side of the slag discharge bin with a hole, and the horizontal end of the removable partition internal component is connected to the closed auxiliary component outside the slag discharge bin through a mortise and tenon structure.

[0010] Preferably, the closing auxiliary component is in a "-shape, and the horizontal end of the closing auxiliary component is connected to the internal component of the removable partition by a mortise and tenon structure; outside the slag discharge bin, a sealing rubber is provided between the outer wall of the slag discharge bin and the vertical end of the closing auxiliary component to seal the holes.

[0011] Preferably, a lifting ring is provided at one end of the partition away from the internal component of the detachable partition, and the lifting ring is exposed outside the hole of the slag discharge bin.

[0012] Preferably, movable tracks for opening and closing the upper gate are provided on both sides of the top of the slag discharge bin, and movable tracks for opening and closing the lower gate are provided on both sides of the bottom of the slag discharge bin.

[0013] Preferably, the slag discharge bin is connected to the screw machine body via a flange.

[0014] The beneficial effects of the utility model are:

[0015] 1) A detachable excavation anti-spurting device is provided. The device is simple to prepare and has a stable structure. It effectively prevents the occurrence of gushing, ensures the stability of surface settlement, and improves the construction safety factor. By staggeredly arranging several layers of detachable partitions in the slag discharge bin to form a maze structure, the impact force generated when the screw machine gushes from the excavation port can be reduced, preventing the occurrence of gushing on site.

[0016] 2) Through the closing auxiliary components matching the internal components of the removable partition, the holes without removable partitions are closed, and a sealing ring is set to ensure that the holes of the slag discharge bin are closed to prevent slag or water from being discharged from the holes on one side of the slag discharge bin. When the removable partition needs to be installed, it is only necessary to replace the closing auxiliary components with the partition and push them into the slag discharge bin to achieve anti-gushing, which is easy to install and flexible to use.

[0017] 3) One end of the internal component of the detachable partition that connects the partition or the closed auxiliary component matches the shape of the hole. When installing or switching the connecting component, it can extend out of the slag discharge bin from the hole, which is convenient for the connection of the mortise and tenon structure, and further ensures the sealing of the hole of the slag discharge bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of a detachable excavation anti-spurting device;

[0019] Figure 2 It is a schematic diagram of a detachable excavation anti-spouting device;

[0020] Figure 3 It is a side view of a detachable excavation anti-spouting device;

[0021] Figure 4 Schematic diagram of a removable partition.

[0022] Explanation of the reference numerals: screw machine body 1, upper gate 2, lower gate 3, slag discharge bin 4, removable partition 5, removable partition internal component 5-1, partition 5-2-1, closing auxiliary component 5-2-2, lifting ring 6, sealing rubber 7. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0024] Embodiment 1

[0025] As an example, Figures 1 to 4 As shown, this detachable excavation anti-spurting device includes: an upper gate 2, a lower gate 3, a slag discharge bin 4 and a detachable partition 5, the top of the slag discharge bin 4 is an inclined surface, the screw machine body 1 is obliquely arranged above the top of the slag discharge bin 4, and the slag discharge bin 4 is connected to the screw machine body 1 through a flange.

[0026] The angle of the inclined plane corresponds to the inclination angle of the screw machine body 1; movable tracks for opening and closing the upper gate 2 are provided on both sides of the top of the slag discharge bin 4, and movable tracks for opening and closing the lower gate 3 are provided on both sides of the bottom of the slag discharge bin 4. The upper gate 2 slides open and close at the top of the slag discharge bin 4; the lower gate 3 slides open and close at the bottom of the slag discharge bin 4. Both the upper gate 2 and the lower gate 3 are gates controlled by oil cylinders. When anti-spurting is required, the upper gate 2 and the lower gate 3 are kept half open or even smaller.

[0027] like Figure 2 and Figure 3 Several layers of detachable partitions 5 are arranged in the slag discharge bin 4, and the detachable partitions 5 are staggered to form a maze structure to control the gushing of the screw machine.

[0028] The removable partition 5 includes a removable partition internal component 5-1 and a partition 5-2-1. Several holes are provided on one side of the slag discharge bin 4, and each hole corresponds to a removable partition internal component 5-1. When anti-surge is required, the partition 5-2-1 is inserted, and one end of the partition 5-2-1 and the removable partition internal component 5-1 are connected by a mortise and tenon structure. The removable partition internal component 5-1 is L-shaped, and the horizontal end of the removable partition internal component 5-1 is connected to the partition 5-2-1 by a mortise and tenon structure. The shape of the hole matches the shape of the horizontal end of the removable partition internal component 5-1.

[0029] like Figure 4 As shown, when the vertical end of the removable partition internal component 5-1 is fitted with the inner wall of one side of the slag discharge bin 4 with a hole, the horizontal end extends out of the slag discharge bin 4 from the hole. At this time, the mortise at the horizontal end of the removable partition internal component 5-1 is exposed outside the slag discharge bin 4, and the tenon at the end of the partition 5-2-1 can be inserted into the mortise of the removable partition internal component 5-1 outside the slag discharge bin 4 to complete the mortise and tenon connection between the two.

[0030] After the partition 5-2-1 and the removable partition internal component 5-1 are connected by mortise and tenon joints, the partition 5-2-1 is pushed into the slag discharge bin 4 from the hole. When it reaches the deepest point, the removable partition internal component 5-1 finally abuts against the inner wall on the side opposite to the hole of the slag discharge bin 4. At this time, the end of the partition 5-2-1 away from the removable partition internal component 5-1 is still exposed outside the hole, and a lifting ring 6 is provided in the middle of this end, and the lifting ring 6 is exposed outside the hole of the slag discharge bin 4, which is convenient for the removal of the removable partition 5.

[0031] Embodiment 2

[0032] As another embodiment, this embodiment 2 proposes a more specific detachable excavation anti-gushing device based on the embodiment 1, such as Figure 4 As shown, there is also a closing auxiliary component 5-2-2 that cooperates with the removable partition inner component 5-1, and each removable partition inner component 5-1 is selectively connected with a partition 5-2-1 or a closing auxiliary component 5-2-2.

[0033] When normal slag discharge is required, the removable partition internal component 5-1 is connected to the closed auxiliary component 5-2-2, and the vertical end of the removable partition internal component 5-1 is fitted with the inner wall of the slag discharge bin 4 with a hole, which minimizes the impact on the excavation inside the slag discharge bin 4, saves space, and makes it convenient to replace the closed auxiliary component 5-2-2 with the partition 5-2-1 when needed.

[0034] When the removable partition internal component 5-1 is connected to the closed auxiliary component 5-2-2, the vertical end of the removable partition internal component 5-1 fits against the inner wall of the slag discharge bin 4 with a hole, which can effectively prevent the slag from flowing out. The horizontal end of the removable partition internal component 5-1 is connected to the closed auxiliary component 5-2-2 outside the slag discharge bin 4 through a mortise and tenon structure.

[0035] The closed auxiliary component 5-2-2 is in a "" shape, which is opposite to the L-shape of the removable partition internal component 5-1. A trapezoidal tenon is provided at one horizontal end of the closed auxiliary component 5-2-2, which can be connected with the trapezoidal mortise and tenon joint of the removable partition internal component 5-1.

[0036] On the outside of the slag discharge bin 4, a sealing rubber 7 is provided between the outer wall of the slag discharge bin 4 and the vertical end of the closing auxiliary component 5-2-2 for sealing the hole. The sealing rubber 7 squeezes the vertical end of the closing auxiliary component 5-2-2, which is equivalent to pulling the removable partition internal component 5-1 outward, which can ensure that the vertical end of the removable partition internal component 5-1 always fits the inner wall of the slag discharge bin 4 with the hole, and is beneficial to prevent the slag from flowing out.

Claims

1. A detachable excavation anti-spurting device, characterized in that: include: The upper gate, the lower gate, the slag discharge bin and the removable partition are provided. The top of the slag discharge bin is inclined, and the angle of the inclined surface corresponds to the inclination angle of the screw conveyor body. The upper gate slides open and close at the top of the slag discharge bin; the lower gate slides open and close at the bottom of the slag discharge bin. There are several layers of removable partitions in the slag discharge bin, which are staggered to form a maze structure; The removable partition includes a removable partition internal component and a partition. Several holes are provided on one side of the slag discharge bin, and each hole corresponds to a removable partition internal component; one end of the partition and the removable partition internal component are connected through a mortise and tenon structure, and the partition is inserted into the slag discharge bin through the hole, and the removable partition internal component abuts against the inner wall on the side opposite to the hole of the slag discharge bin, and one end of the partition is exposed outside the hole.

2. The detachable excavation anti-spurting device according to claim 1 is characterized in that: The internal component of the removable partition is L-shaped, and the horizontal end of the internal component of the removable partition is connected to the partition through a mortise and tenon structure. The shape of the hole matches the shape of the horizontal end of the internal component of the removable partition. When the vertical end of the internal component of the removable partition is in contact with the inner wall of one side of the slag discharge bin with the hole, the horizontal end extends out of the slag discharge bin from the hole.

3. The detachable excavation anti-spurting device according to claim 2 is characterized in that: There is also a closed auxiliary component that cooperates with the removable partition internal component. Each removable partition internal component is selectively connected to a partition or a closed auxiliary component. When the removable partition internal component is connected to the closed auxiliary component, the vertical end of the removable partition internal component is fitted with the inner wall of one side of the slag discharge bin with a hole, and the horizontal end of the removable partition internal component is connected to the closed auxiliary component outside the slag discharge bin through a mortise and tenon structure.

4. The detachable excavation anti-spurting device according to claim 3 is characterized in that: The closed auxiliary component is in a "-shape, and the horizontal end of the closed auxiliary component is connected to the internal component of the removable partition through a mortise and tenon structure; outside the slag discharge bin, a sealing rubber is provided between the outer wall of the slag discharge bin and the vertical end of the closed auxiliary component to seal the hole.

5. The detachable excavation anti-spurting device according to claim 1 is characterized in that: A lifting ring is arranged at one end of the partition away from the internal component of the detachable partition, and the lifting ring is exposed outside the hole of the slag discharge bin.

6. The detachable excavation anti-spurting device according to claim 1 is characterized in that: Both sides of the top of the slag discharge bin are provided with movable tracks for opening and closing the upper gate, and both sides of the bottom of the slag discharge bin are provided with movable tracks for opening and closing the lower gate.

7. The detachable excavation anti-spurting device according to claim 1 is characterized in that: The slag discharge bin is connected to the screw conveyor body through a flange.

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