Sludge discharge anti-blocking device for muddy water bin of muddy water balance push bench

Abstract

The utility model relates to a sludge discharge anti-blocking device for a muddy water bin of a muddy water balance push bench, which comprises a rotating shaft rotationally connected to the centers of the upper and lower inner walls of the muddy water bin, scrapers in contact with the inner walls of the muddy water bin are detachably mounted at the top and the bottom of the outer wall of the rotating shaft, and a plurality of groups of crushing cutter components are mounted at the bottom of the outer wall of the rotating shaft from bottom to top. A filter screen coplanar with the inner wall of the muddy water bin is arranged at the end of a mud discharging opening of the muddy water bin, a filter screen anti-blocking assembly corresponding to the filter screen is detachably installed on the outer edge of the rotating shaft, and a motor for driving the rotating shaft to rotate is installed at the top of the muddy water bin. The anti-blocking device has a good mud block crushing effect, can scrape the filter screen in real time during mud discharge, and has a good anti-blocking effect.

Description

Technical Field

[0001] The utility model relates to the technical field of mud-water balance pipe jacking construction, in particular to a mud discharge and anti-blocking device for a mud-water bin of a mud-water balance pipe jacking machine. Background Art

[0002] A slurry pipe jacking machine is a type of equipment used in trenchless construction technology, primarily for the construction or repair of urban underground pipelines. This technology allows for the laying of new pipelines without excavating the ground, making it suitable for projects crossing rivers, roads, buildings, and other complex terrains. The slurry bin is an indispensable component of a slurry pipe jacking machine. One of its main functions is to maintain the stability of the soil in front of the excavation face by regulating the pressure of the mud to prevent collapse. As the pipe jacking machine advances, waste soil and mud generated by the excavation face will enter the slurry bin. If these waste materials are not discharged in a timely manner, the pressure in the slurry bin will increase, affecting the normal operation of the pipe jacking machine and the stability of the excavation face.

[0003] However, due to the presence of large clods in the muddy water, the rapid accumulation of clods during the drainage process can cause obstruction or even blockage in the drainage pipes, leading to a complete stagnation and impacting the project progress. The traditional solution is to shut down the machine for inspection and cleaning, which is time-consuming, labor-intensive, and slows down the project progress. Summary of the Invention

[0004] The utility model aims to solve the deficiencies of the prior art and provides a mud discharge and anti-blocking device for a mud and water bin of a mud and water balance pipe jacking machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a mud discharge and anti-blocking device for the mud and water bin of a mud and water balanced pipe jacking machine, comprising a rotating shaft rotatably connected to the center of the upper and lower inner walls of the mud and water bin, scrapers in contact with the inner wall of the mud and water bin are detachably installed on the top and bottom of the outer wall of the rotating shaft, a plurality of groups of crushing knife assemblies are installed from bottom to top on the bottom of the outer wall of the rotating shaft, and the crushing knife assemblies do not contact the scrapers, a filter screen is provided at the end of the mud discharge port of the mud and water bin in the same plane as the inner wall of the mud and water bin, a filter screen anti-blocking assembly corresponding to the filter screen is detachably installed on the outer edge of the rotating shaft, and a motor for driving the rotating shaft to rotate is installed on the top of the mud and water bin.

[0006] In particular, the mud and water bin is arranged in a conical structure.

[0007] In particular, scraper connecting plates are respectively provided at the top and bottom of the scraper, first clamping rings are installed at the top and bottom of the outer wall of the rotating shaft, and the scraper connecting plates are fixed to the end plates of the first clamping rings by bolts and nuts.

[0008] In particular, a set of crushing blade assemblies includes two pairs of semicircular fixing plates, which are butt-jointed and sleeved on the outer wall of the rotating shaft and fixed by bolts and nuts. One pair of fixing plates is fixed with upwardly inclined crushing blades on the outer side, and the other pair of fixing plates is fixed with downwardly inclined crushing blades on the outer side. The crushing blades are provided with an oblique edge on one side along the rotation direction, and the oblique edge is provided with a plurality of serrations, and the crushing blades are provided with through holes.

[0009] In particular, the filter anti-blocking assembly includes a steel brush, a steel brush connecting plate is provided in the middle of the outer wall of the steel brush, a second clamping ring corresponding to the steel brush connecting plate is installed on the outer wall of the rotating shaft, the steel brush connecting plate is fixed to the second clamping ring by bolts and nuts, and the steel brush contacts the filter when rotating.

[0010] Particularly, a reinforcing rod is provided on the inner wall of the angle between the outer wall of the steel brush and the steel brush connecting plate.

[0011] The beneficial effects of the utility model are as follows: the utility model is provided with a rotating shaft, a scraper, a crushing knife assembly, a filter screen, a filter screen anti-blocking assembly, and a motor. The scraper can scrape the inner wall of the mud and water bin in and out to avoid more and more adhering mud, which affects mud discharge; the crushing knife assembly can crush large mud blocks to avoid accumulation and blockage; the filter screen can intercept large mud blocks to avoid clogging of the mud discharge pipe; the filter screen anti-blocking assembly can scrape the filter screen in real time during mud discharge to avoid mud clogging the mesh holes. The overall anti-blocking effect is good and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic structural diagram of a crushing knife assembly of the present utility model;

[0014] In the figure: 1 - mud and water bin; 2 - rotating shaft; 3 - scraper; 31 - scraper connecting plate; 32 - first clamping ring; 4 - crushing blade assembly; 41 - fixing plate; 42 - crushing blade; 43 - oblique edge; 44 - serration; 45 - through hole; 5 - mud outlet; 6 - filter screen; 7 - filter screen anti-blocking assembly; 71 - steel brush; 72 - steel brush connecting plate; 73 - second clamping ring; 74 - reinforcement rod; 8 - motor;

[0015] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] like Figure 1-Figure 2As shown, a mud discharge and anti-blocking device for the mud and water bin of a mud and water balanced pipe jacking machine includes a rotating shaft 2 rotatably connected to the centers of the upper and lower inner walls of the mud and water bin 1, a motor 8 that drives the rotating shaft 2 to rotate is installed on the top of the mud and water bin 1, and the mud and water bin 1 is arranged in a conical structure to make solid matter more likely to slide down, and a scraper 3 that contacts the inner wall of the mud and water bin 1 is detachably installed on the top and bottom of the outer wall of the rotating shaft 2, and a scraper connecting plate 31 is respectively provided on the top and bottom of the scraper 3, and a first clamping ring 32 is installed on the top and bottom of the outer wall of the rotating shaft 2, and the scraper connecting plate 31 is fixed to the end plate of the first clamping ring 32 by bolts and nuts; the scraper 3 can scrape the inner wall of the mud and water bin 1 in and out to avoid more and more adhering mud and affecting mud discharge.

[0018] Several groups of crushing knife assemblies 4 are installed from bottom to top on the bottom of the outer wall of the rotating shaft 2. The crushing knife assemblies 4 do not contact the scraper 3. One group of crushing knife assemblies 4 includes two pairs of semicircular fixing plates 41. The two pairs of fixing plates 41 are butt-jointed on the outer wall of the rotating shaft 2 and fixed by bolts and nuts. A pair of fixing plates 41 are fixed with upward-inclined crushing blades 42 on the outer side, and another pair of fixing plates 41 are fixed with downward-inclined crushing blades 42 on the outer side. The crushing blades 42 are provided with an oblique edge 43 on one side along the rotation direction, and a plurality of serrations 44 are provided on the oblique edge 43. The serrations 44 increase the contact area between the tool and the cut material, which helps to improve the cutting efficiency and quality. The crushing blades 42 are provided with through holes 45, which can improve the soil discharge efficiency and reduce the weight of the tool. The crushing knife assembly 4 is provided to crush large pieces of mud, while ensuring that the mud is evenly mixed to prevent blockage caused by sedimentation.

[0019] The end of the mud discharge port 5 of the mud and water bin 1 is provided with a filter screen 6 which is coplanar with the inner wall of the mud and water bin 1. A filter screen anti-blocking component 7 corresponding to the filter screen 6 is detachably installed on the outer edge of the rotating shaft 2. The filter screen anti-blocking component 7 includes a steel brush 71. A steel brush connecting plate 72 is provided in the middle of the outer wall of the steel brush 71. A second clamping ring 73 corresponding to the steel brush connecting plate 72 is installed on the outer wall of the rotating shaft 2. The steel brush connecting plate 72 is fixed to the second clamping ring 73 by bolts and nuts. When the steel brush 71 rotates, it contacts the filter screen 6. A reinforcing rod 74 is provided on the inner wall of the angle between the outer wall of the steel brush 71 and the steel brush connecting plate 72. When discharging mud, the steel brush 71 continuously scrapes the filter screen 6 to prevent the filter screen 6 from being blocked.

[0020] When the utility model is in operation, mud enters the mud and water tank 1 through the inlet, and the rotating shaft 2 rotates under the action of the motor 8, driving the crushing blade assembly 4, the scraper 3, and the filter anti-blocking assembly 7 to rotate. The crushing blade 42 can crush the solid matter settled in the lower part, ensuring that the mud is evenly mixed and preventing the accumulation of large mud blocks. The filter 6 can intercept large mud blocks to prevent clogging of the mud discharge pipe. The steel brush 71 can continuously scrape the surface of the filter 6 to prevent mud accumulation from clogging the mesh. The utility model has a good crushing effect on large mud blocks and can scrape the filter 6 in real time during mud discharge, which has a good anti-blocking effect.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation to the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A mud discharge and anti-blocking device for the mud and water silo of a mud and water balance pipe jacking machine, characterized in that: The utility model comprises a rotating shaft (2) rotatably connected to the center of the upper and lower inner walls of the mud and water bin (1); scrapers (3) in contact with the inner wall of the mud and water bin (1) are detachably mounted on the top and bottom of the outer wall of the rotating shaft (2); a plurality of groups of crushing knife assemblies (4) are mounted from bottom to top on the bottom of the outer wall of the rotating shaft (2); the crushing knife assemblies (4) do not contact with the scrapers (3); a filter screen (6) coplanar with the inner wall of the mud and water bin (1) is provided at the end of the mud discharge port (5) of the mud and water bin (1); a filter screen anti-blocking assembly (7) corresponding to the filter screen (6) is detachably mounted on the outer edge of the rotating shaft (2); and a motor (8) for driving the rotating shaft (2) to rotate is mounted on the top of the mud and water bin (1).

2. The mud discharge and anti-blocking device for the mud and water silo of the mud and water balance pipe jacking machine according to claim 1 is characterized in that: The mud and water bin (1) is arranged in a conical structure.

3. The mud discharge and anti-blocking device for the mud and water silo of the mud and water balance pipe jacking machine according to claim 1 is characterized in that: The top and bottom of the scraper (3) are respectively provided with a scraper connecting plate (31), the top and bottom of the outer wall of the rotating shaft (2) are installed with a first clamping ring (32), and the scraper connecting plate (31) is fixed to the end plate of the first clamping ring (32) by bolts and nuts.

4. The mud discharge and anti-blocking device for the mud and water silo of a mud and water balance pipe jacking machine according to claim 1 is characterized in that: A set of crushing blade assemblies (4) includes two pairs of semicircular fixing plates (41), which are butt-jointed and sleeved on the outer wall of the rotating shaft (2) and fixed by bolts and nuts. One pair of fixing plates (41) is fixedly provided with upwardly inclined crushing blades (42) on the outer side, and the other pair of fixing plates (41) is fixedly provided with downwardly inclined crushing blades (42) on the outer side. The crushing blades (42) are provided with oblique edges (43) along one side of the rotation direction, and the oblique edges (43) are provided with a plurality of saw teeth (44). The crushing blades (42) are provided with through holes (45).

5. The mud discharge and anti-blocking device for the mud and water bunker of a mud and water balance pipe jacking machine according to claim 1 is characterized in that: The filter screen anti-blocking assembly (7) comprises a steel brush (71), a steel brush connecting plate (72) is provided at the middle of the outer wall of the steel brush (71), a second clamping ring (73) corresponding to the steel brush connecting plate (72) is installed on the outer wall of the rotating shaft (2), the steel brush connecting plate (72) is fixed to the second clamping ring (73) by bolts and nuts, and the steel brush (71) contacts the filter screen (6) when rotating.

6. The mud discharge and anti-blocking device for the mud and water bunker of a mud and water balance pipe jacking machine according to claim 5, characterized in that: A reinforcing rod (74) is provided on the outer wall of the steel brush (71) and the inner wall of the included angle of the steel brush connecting plate (72).

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