Slurry feeding device and shield tunneling machine

Abstract

The utility model relates to the technical field of muddy water treatment, and particularly discloses a slurry feeding device and a shield tunneling machine. Wherein the pulp feeding device comprises a pulp feeding box and a partition plate; a pulp inlet and a pulp outlet are formed in the pulp inlet box; the partition plate is arranged in the pulp inlet box and located between the pulp inlet and the pulp outlet. And the slurry inlet and the slurry outlet are communicated with each other. According to the scheme, the partition plate can play a role in blocking slurry entering the slurry inlet box from the slurry inlet, so that the flow speed of the slurry is reduced, impact of the slurry on the dewatering vibrating screen and noise in the production process are reduced, and the effect of prolonging the service life of the dewatering vibrating screen is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of mud and water treatment, and in particular to a slurry feeding device and a shield machine. Background Art

[0002] Slurry balance shield excavation technology is a commonly used tunnel excavation technology. During the excavation work of the shield machine, slurry is needed to resist the water pressure of the excavation face to maintain the stability of the excavation face; therefore, a large amount of soil mortar will be produced during the excavation process.

[0003] The mud slurry generated during the excavation process needs to be separated by passing through the dewatering vibrating screen, and then the mud slurry is pumped to the ground and diverted to the slurry feeding device through the distributor. The slurry feeding device is used to feed the slurry containing mud into the dewatering vibrating screen for screening. Since the flow rate of the mud is high during the pumping process, it is easy to splash when the mud reaches the screen surface, and the impact force on the dewatering vibrating screen is large, resulting in a shortened life of the dewatering vibrating screen and a large noise in the production process. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a slurry feeding device and a shield machine, which are used to solve the problem that the existing shield machine pumps slurry at a fast flow rate during excavation, resulting in a reduced life of the dewatering vibrating screen and high noise in the production process.

[0005] In order to achieve the above technical objectives, the first aspect of the present application provides a pulp feeding device, comprising: a pulp feeding box and a partition;

[0006] A pulp inlet and a pulp outlet on the pulp feed box;

[0007] The partition is arranged in the pulp inlet box and is located between the pulp inlet and the pulp outlet;

[0008] The slurry inlet and the slurry outlet are communicated with each other.

[0009] Furthermore, a buffer layer is provided on the side of the partition facing the slurry inlet.

[0010] Furthermore, the partition is detachably connected to the pulp feed box.

[0011] Further, the partition includes: a main board and a sealing board;

[0012] The slurry inlet box is provided with an opening;

[0013] One end of the main board extends through the opening into the pulp feed box;

[0014] The other end of the main board is connected to the pulp inlet box;

[0015] The sealing plate is sandwiched between the main board and the pulp inlet box.

[0016] Furthermore, a handle is provided on a side of the main board facing away from the pulp inlet box.

[0017] Further, it also includes: a flushing tube;

[0018] One end of the flushing pipe extends into the pulp inlet box;

[0019] The other end of the flushing pipe is connected to a water pump.

[0020] Furthermore, a water outlet inclined downward is provided on the side of one end of the flushing pipe extending into the slurry inlet box.

[0021] Furthermore, the longitudinal section of the slurry inlet box is an inverted V shape.

[0022] Furthermore, a first cavity and a second cavity are provided inside the slurry feed box;

[0023] The first cavity and the second cavity form an inverted V-shaped structure;

[0024] The volume of the first cavity is smaller than the volume of the second cavity;

[0025] The slurry inlet is arranged on one side of the slurry inlet box close to the first cavity;

[0026] The pulp outlet is arranged on one side of the pulp inlet box close to the second cavity;

[0027] The partition extends into the second cavity.

[0028] A second aspect of the present application provides a shield machine, comprising the slurry feeding device and the dewatering vibrating screen as described in any one of the above items;

[0029] The dewatering vibration screen is arranged in front of the outlet direction of the pulp outlet of the pulp feeding device.

[0030] It can be seen from the above technical scheme that the present application provides a slurry feeding device and a shield machine; wherein the slurry feeding device includes: a slurry feeding box and a partition; a slurry inlet and a slurry outlet on the slurry feeding box; the partition is arranged in the slurry feeding box and is located between the slurry inlet and the slurry outlet; the slurry inlet and the slurry outlet are connected to each other.

[0031] In this solution, the partition can block the mud entering the slurry box from the slurry inlet, thereby slowing down the flow rate of the mud, reducing the impact of the mud on the dewatering vibrating screen and the noise in the production process, and extending the service life of the dewatering vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 An external structural diagram of a pulp feeding device provided in an embodiment of the present application;

[0034] Figure 2 A cross-sectional view of a slurry feeding device provided in an embodiment of the present application;

[0035] Figure 3 A three-dimensional view of the bottom surface of a partition of a pulp feeding device provided in an embodiment of the present application;

[0036] Figure 4 A top view of a pulp feeding device provided in an embodiment of the present application after removing a partition;

[0037] Figure 5 A cross-sectional view of a pulp feeding device provided in an embodiment of the present application after removing a partition;

[0038] Figure 6 A schematic diagram of some components of a shield machine provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0040] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0042] See also Figure 1 and Figure 2 In the first aspect of the embodiments of the present application, a pulp feeding device is provided, comprising: a pulp feeding box 10 and a partition 20; a pulp inlet 11 and a pulp outlet 12 on the pulp feeding box 10; the partition 20 is arranged in the pulp feeding box 10 and is located between the pulp inlet 11 and the pulp outlet 12; the pulp inlet 11 and the pulp outlet 12 are connected to each other.

[0043] In the slurry feeding box 10, the slurry can enter the slurry feeding box 10 from the slurry inlet 11, and then be discharged from the slurry outlet 12 and fall on the dewatering vibrating screen. Since the slurry feeding box 10 is provided with a partition 20, the slurry entering the slurry feeding box 10 will first impact the partition 20, and the partition 20 absorbs the impact kinetic energy of the slurry, thereby reducing the noise and splashing caused by the impact of the slurry, and at the same time reducing the impact of the slurry on the dewatering vibrating screen, thereby reducing the wear of the dewatering vibrating screen, extending the service life of the dewatering vibrating screen, and avoiding splashing caused by the impact or slurry running due to the impact, so that the slurry feeding is more stable.

[0044] Optionally, see Figure 2 and Figure 3 A buffer layer 21 is provided on the side of the partition 20 facing the pulp inlet 11.

[0045] The buffer layer 21 may be a rubber layer, which can improve the kinetic energy absorption effect of the partition 20 and play a better role in alleviating the impact of mud.

[0046] As an implementation mode, the partition plate 20 is detachably connected to the pulp inlet box 10, so that the worn partition plate 20 can be easily replaced.

[0047] For more specific examples, see Figures 1 to 5 The partition 20 includes: a main board 22 and a sealing plate 23; an opening 13 is provided on the pulp feed box 10; one end of the main board 22 extends into the pulp feed box 10 through the opening 13; the other end of the main board 22 is connected to the pulp feed box 10; the sealing plate 23 is sandwiched between the main board 22 and the pulp feed box 10. The buffer layer 21 can be provided on the main board 22.

[0048] A limiting groove 14 may be provided inside the pulp feed box 10; when the main board 22 extends into the pulp feed box 10, it will extend into the limiting groove 14 and slide along the limiting groove 14; that is, the limiting groove 14 plays a role of limiting and guiding.

[0049] Optionally, the main board 22 is a T-shaped board, so that after the main board 22 extends into a preset position of the pulp feed box 10, it will abut against the pulp feed box 10, and then the main board 22 can be fixed to the pulp feed box 10 by bolts and other connecting parts.

[0050] Optionally, a handle 24 is provided on the main board 22 on the side facing away from the pulp inlet box 10 to facilitate the user to take out the partition 20 during maintenance.

[0051] In other embodiments, the pulp feeding device further includes: a flushing pipe 30; one end of the flushing pipe 30 extends into the pulp feeding box 10; and the other end of the flushing pipe 30 is connected to a water pump.

[0052] Specifically, a valve 32 for controlling the opening and closing of the flushing pipe 30 may be provided on the flushing pipe 30; when maintenance and cleaning of the interior of the slurry inlet box 10 is required, the operator can manually open the water pump and the valve 32 to easily clean the interior.

[0053] Optionally, a water outlet 31 inclined downward is provided on the side of one end of the flushing pipe 30 extending into the pulp feed box 10 to ensure that the flushing pipe 30 can flush the bottom of the pulp feed box 10 so that mud accumulation and blockage will not occur at the bottom of the pulp feed box 10.

[0054] In one embodiment, the longitudinal section of the slurry feed box 10 is in an inverted V shape, so that the flow path of the slurry entering the slurry feed box 10 is in an undulating S shape, which helps to mitigate the impact of the slurry on the dewatering vibrating screen.

[0055] In a more specific embodiment, a first cavity 101 and a second cavity 102 are provided inside the pulp feed box 10; the first cavity 101 and the second cavity 102 form an inverted V-shaped structure; the volume of the first cavity 101 is smaller than the volume of the second cavity 102; the pulp inlet 11 is provided on a side of the pulp feed box 10 close to the first cavity 101; the pulp outlet 12 is provided on a side of the pulp feed box 10 close to the second cavity 102; and the partition 20 extends into the second cavity 102.

[0056] The second cavity 102 serves as a buffer zone and has a larger space. After the mud passes through the second cavity 102 and slows down its flow rate, it enters the first cavity 101 and falls onto the dewatering vibrating screen through the slurry outlet 12. The mud has almost no impact force on the screen, resulting in less wear on the screen, and splashing caused by impact or slurry running due to impact. The equipment is more stable in slurry feeding and has a longer service life.

[0057] See also Figure 6In a second aspect, the present application provides a shield machine, comprising any of the above-mentioned slurry feeding devices and a dewatering vibrating screen 40; the dewatering vibrating screen 40 is arranged in front of the outlet direction of the slurry outlet 12 of the slurry feeding device.

[0058] The soil mortar generated by the shield machine during the excavation process provided by this solution can have part of its kinetic energy absorbed by the slurry feeding device after entering the slurry feeding device, so that the impact force of the mud falling on the dewatering vibrating screen 40 on the screen is reduced, avoiding splashing or slurry running due to impact, thereby making the slurry feeding more stable and improving the service life of the dewatering vibrating screen 40.

[0059] The above are only preferred embodiments of the present application and are not intended to limit the present utility model. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pulp feeding device, characterized in that: include: A pulp inlet box (10) and a partition (20); The pulp inlet box (10) has a pulp inlet (11) and a pulp outlet (12); The partition plate (20) is arranged in the pulp inlet box (10) and is located between the pulp inlet (11) and the pulp outlet (12); The pulp inlet (11) and the pulp outlet (12) are connected to each other.

2. The pulp feeding device according to claim 1, characterized in that: A buffer layer (21) is provided on the side of the partition plate (20) facing the pulp inlet (11).

3. The pulp feeding device according to claim 1, characterized in that: The partition plate (20) is detachably connected to the pulp inlet box (10).

4. The pulp feeding device according to any one of claims 1 to 3, characterized in that: The partition plate (20) comprises: a main plate (22) and a sealing plate (23); The pulp inlet box (10) is provided with an opening (13); One end of the main board (22) passes through the opening (13) and extends into the interior of the pulp inlet box (10); The other end of the main board (22) is connected to the pulp inlet box (10); The sealing plate (23) is sandwiched between the main plate (22) and the pulp inlet box (10).

5. The pulp feeding device according to claim 4, characterized in that: A handle (24) is provided on the side of the main board (22) facing away from the pulp inlet box (10).

6. The pulp feeding device according to claim 1, characterized in that: Also includes: Flushing pipe (30); One end of the flushing pipe (30) extends into the pulp inlet box (10); The other end of the flushing pipe (30) is connected to a water pump.

7. The pulp feeding device according to claim 6, characterized in that: A water outlet (31) inclined downward is provided on the side of one end of the flushing pipe (30) extending into the pulp inlet box (10).

8. The pulp feeding device according to claim 1, characterized in that: The longitudinal section of the pulp inlet box (10) is an inverted V shape.

9. The pulp feeding device according to claim 8, characterized in that: The pulp inlet box (10) is provided with a first cavity (101) and a second cavity (102) inside; The first cavity (101) and the second cavity (102) form an inverted V-shaped structure; The volume of the first cavity (101) is smaller than the volume of the second cavity (102); The pulp inlet (11) is arranged on a side of the pulp inlet box (10) close to the first cavity (101); The pulp outlet (12) is arranged on a side of the pulp inlet box (10) close to the second cavity (102); The partition plate (20) extends into the second cavity (102).

10. A shield machine, characterized in that: Comprising the pulp feeding device and the dewatering vibrating screen (40) according to any one of claims 1 to 9; The dewatering vibration screen (40) is arranged in front of the outlet direction of the pulp outlet (12) of the pulp feeding device.

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