In-pipe pouring vault discharged slurry recovery system

Abstract

The invention provides an in-pipe grouting vault discharged slurry recovery system which comprises a vault discharged slurry assembly and a discharged slurry recovery assembly, the vault discharged slurry assembly comprises a slurry outlet pipe, a slurry storage barrel, an observation window and two slurry discharge pipes, one end of the slurry outlet pipe is used for being connected with a slurry outlet formed in a vault, and the slurry storage barrel is connected with the slurry outlet pipe; the observation window is arranged on the slurry storage barrel; the two slurry discharge pipes are connected to two opposite ends of the side part of the slurry storage barrel; the slurry discharging and recycling assembly comprises a material collecting hopper, a recycling pipeline and a collecting container, the material collecting hopper is located below the two slurry discharging pipes so as to receive slurry discharged from the two slurry discharging pipes, the recycling pipeline is linearly laid along the arch rib and connected with the material collecting hopper, and the collecting container is arranged on the arch foot side and communicated with the recycling pipeline. The device can synchronously and effectively recover and treat sewage such as slurry discharged from a vault slurry outlet in real time in the concrete pouring process, effectively restrains splashing flow, and facilitates construction workers to timely judge the pouring progress of concrete in a pipe and the material state by observing the situation of the discharged slurry.

Description

Technical Field

[0001] The invention relates to the technical field of arch bridge concrete construction, in particular to an in-pipe cast arch slurry discharge and recovery system. Background Art

[0002] With the increasing awareness of global environmental protection, green construction technology has gradually become an important development direction in the field of highway and bridge construction. Traditional construction methods often have a great impact on the environment. The introduction of green construction technology can effectively reduce the negative impact on the environment during the construction process, improve resource utilization efficiency, and achieve a dual improvement in economic and environmental benefits.

[0003] Concrete pouring in self-compacting concrete pipes is a key link in the construction of CFST arch bridges. The self-compacting concrete pouring in pipes adopts a bottom-up pumping method. The concrete at the arch foot is transported to the corresponding position on the arch through the pump pipe, and a slurry outlet is set at the top of the arch. The slurry outlet at the top of the arch is mainly used to discharge the air and excess slurry in the pipe to ensure that the concrete can smoothly fill the entire space in the pipe. The slurry outlet can also be used to observe the pouring status of concrete. When the concrete overflows from the slurry outlet and there are no bubbles, it indicates that the concrete in the pipe has been poured in place. At this time, pumping can be stopped to ensure that the concrete is fully filled. However, during the pouring construction process, the concrete in the pipe is under pressure, and it is easy to form a splash flow at the slurry outlet, resulting in the risk of high-altitude concrete pollutant emissions. At the same time, the discharged slurry forms a splash flow at the slurry outlet, making it difficult for the staff to observe the slurry situation and cannot judge the pouring status of the concrete in the pipe in time.

[0004] The Chinese utility model with announcement number CN220057648U discloses a system for recovering tailings of concrete pumping construction on arch bridges. A recovery passage matching the arch rib line is established through a recovery pipe, and multiple discharge recovery ports are provided, so that after the concrete pumping on the arch is completed, the concrete can be recovered through the discharge recovery port nearby. The tailings and pipe cleaning waste are transported from the discharge recovery port through the recovery pipe to the arch foot side collection container under the action of their own gravity, so as to realize the recovery of tailings and pipe cleaning waste, avoid the waste and environmental pollution caused by the direct discharge of concrete tailings and pipe cleaning waste, effectively avoid the risk of falling objects from high altitude, and reduce construction costs. However, it is used for the discharge of pump pipe tailings and pipe cleaning operations after the concrete pumping on the arch is completed, and it is unable to recover the slurry discharged from the arch rib slurry outlet, and it also fails to solve the technical problem that the slurry forms a splash flow at the slurry outlet, making it difficult for the staff to observe the slurry. Summary of the invention

[0005] In order to solve the technical problems mentioned in the background technology, the present invention provides an in-pipe vault slurry recovery system, which can effectively and synchronously recover and treat wastewater such as slurry discharged from the vault slurry outlet in real time during the concrete pouring process, effectively restrain the occurrence of splash flow, and facilitate construction workers to observe the discharged slurry, so as to timely judge the pouring progress and material status of the concrete in the pipe.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A system for discharging slurry from an in-pipe poured arch vault and recovering it, comprising an arch vault discharging assembly and a discharging slurry recovery assembly, wherein the arch vault discharging assembly comprises a slurry outlet pipe, a slurry storage barrel, an observation window and two rows of slurry pipes, wherein one end of the slurry outlet pipe is used to be connected to a slurry outlet provided on the arch vault of an arch rib; one end of the slurry storage barrel is connected to the other end of the slurry outlet pipe; the observation window is mounted on the slurry storage barrel and is used to observe the slurry condition in the slurry storage barrel; the two slurry outlet pipes are connected to the side of the slurry storage barrel, and the two slurry outlet pipes are respectively located at opposite ends of the slurry storage barrel; the slurry outlet recovery assembly comprises a collection funnel, a recovery pipe and a collecting container, the collection funnel is located below the two slurry outlet pipes to receive the slurry discharged from the two slurry outlet pipes, the recovery pipe is laid along the arch rib line and connected to the collection funnel, and the collecting container is arranged on the arch foot side and communicated with the recovery pipe.

[0008] Furthermore, the slurry discharge pipe is coaxially arranged with the slurry storage barrel, and one end of the slurry discharge pipe away from the slurry discharge port is inclined in a direction away from the aggregate hopper.

[0009] Furthermore, the other end of the slurry storage barrel is provided with a mounting port for connecting to a vacuum system, and both of the slurry discharge pipes are provided with valves.

[0010] Furthermore, hooks are fixed on the outer wall of the slurry storage barrel and the outer wall of the aggregate hopper, and the two hooks are connected together by a steel wire rope.

[0011] Furthermore, the recovery pipeline includes a plurality of pipeline segments and a tee pipe connecting two adjacent pipeline segments, the two adjacent pipeline segments are respectively connected to two pipe openings of the tee pipe, and the other pipe opening of the tee pipe is connected to the gathering funnel.

[0012] Furthermore, the vault slurry discharge assembly comprises a plurality of groups, and the slurry outlet pipes of the plurality of groups of the vault slurry discharge assemblies are respectively connected to the slurry outlet of the upper chord pipe of the arch rib and the slurry outlet of the lower chord pipe of the arch rib; the plurality of aggregate funnels are provided corresponding to the plurality of groups of the vault slurry discharge assemblies, and the plurality of aggregate funnels respectively receive the slurry discharged from the slurry outlet pipes of the plurality of groups of the vault slurry discharge assemblies.

[0013] Furthermore, the recovery pipeline is laid on the lower chord maintenance ladder of the arch rib; the aggregate funnel arranged at the lower chord pipe is directly connected to the pipe mouth of the tee pipe at the corresponding position; the discharge end of the aggregate funnel arranged at the upper chord pipe is connected to the corresponding pipe mouth of the tee pipe through an extension pipe, or is connected to the feed end of the aggregate funnel at a lower chord pipe through an extension pipe, thereby being connected to the corresponding tee pipe through the aggregate funnel.

[0014] Furthermore, the gathering funnel is detachably connected to the pipe opening or the extension pipe of the three-way pipe.

[0015] Furthermore, a three-proof cloth is laid under the recovery pipeline.

[0016] Furthermore, the in-tube cast arch slurry drainage and recovery system also includes a slurry receiving platform, which is fixed on the arch rib and located below the arch slurry drainage assembly and the aggregate funnel.

[0017] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0018] 1. The in-pipe pouring arch slurry recovery system of the present invention temporarily stores the slurry discharged from the slurry outlet by setting a slurry storage barrel, which plays a buffering role and effectively restrains the occurrence of splash flow; the construction worker can conveniently observe the slurry discharged from the slurry outlet through the observation window set on the slurry storage barrel, so as to timely judge the pouring progress and material status of the concrete in the pipe. The slurry discharge pipes set at both ends of the slurry storage barrel can maintain the pressure balance inside and outside the slurry storage barrel to ensure the smooth outflow of waste materials. The slurry discharged from the slurry discharge pipe can enter the recovery pipeline through the nearest aggregate funnel, and be transported to the collection container on the arch foot side under the action of its own gravity, so as to realize the recovery of tailings and pipe cleaning waste, and realize the real-time synchronous and effective recovery and treatment of sewage such as slurry discharge from the arch slurry outlet during the concrete pouring process, so as to avoid the waste and environmental pollution caused by the direct discharge of concrete tailings and pipe cleaning waste, and effectively avoid the risk of falling objects from high altitude.

[0019] 2. In the in-tube pouring arch slurry recovery system of the present invention, the collecting funnel of the slurry recovery component is detachably connected to the tee of the recovery pipeline. After the concrete pumping on the arch is completed, the funnel can be removed and one end of the pump pipe can be connected to the tee, so that the pipe lubrication waste and pipe washing wastewater can be directly connected to the recovery pipeline through the pump pipe for recovery. In addition, the slurry storage barrels and collecting funnels on the lower chord pipe and the upper chord pipe can share a recovery pipeline, saving the materials required for laying the in-tube pouring arch slurry recovery system.

[0020] 3. The in-pipe pouring vault slurry discharge and recovery system of the present invention has a vault slurry discharge platform arranged below the top slurry discharge assembly and a three-proof cloth laid under the recovery pipe, which can receive the waste accidentally leaked during the vault slurry discharge, pump pipe washing waste water and pipe lubrication waste access to the three-way pipe and the recovery pipe drainage process, thereby further reducing the risk of falling objects from high altitudes and effectively preventing concrete and sewage from directly entering natural water bodies or soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention, in-pipe pouring vault slurry recovery system;

[0022] Figure 2 for Figure 1 A magnified view at point A;

[0023] Figure 3 for Figure 2 A schematic diagram of the right view of a part of the structure;

[0024] Figure 4 for Figure 2 Schematic diagram of the structure after removing the slurry receiving platform and the arch slurry discharge assembly;

[0025] Main component symbols

[0026] 10. Arch slurry discharge assembly; 11. Slurry outlet pipe; 13. Slurry storage barrel; 131. Installation port; 133. Connection hole; 15. Observation window; 17. Slurry discharge pipe; 18. Valve; 30. Slurry recovery assembly; 31. Aggregate funnel; 32. Recovery pipeline; 321. Pipe segment; 323. Tee pipe; 33. Extension pipe; 34. Collection container; 35. Limit plate; 36. Hook; 37. Wire rope; 38. Three-proof cloth; 39. Guide pipe; 40. Slurry receiving platform; 50. Arch rib; 52. Lower chord pipe; 53. Upper chord pipe; 60. Lower chord maintenance ladder. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Please also see Figures 1 to 4 A preferred embodiment of the present invention provides an in-pipe pouring arch slurry discharge and recovery system, comprising an arch slurry discharge component 10 and a slurry discharge and recovery component 30, both of which are arranged on the arch rib 50, and the arch slurry discharge component 10 is used to connect with a slurry outlet (not shown) arranged on the arch of the arch rib 50 to temporarily store and discharge in real time the slurry discharged from the slurry outlet during the in-pipe pouring process; the slurry discharge and recovery component 30 is arranged on one side of the arch slurry discharge component 10, and is used to recover the slurry discharged from the arch slurry discharge component 10.

[0031] In this embodiment, the arch rib 50 includes a lower chord tube 52 and an upper chord tube 53 located above the lower chord tube 52. During the construction process, concrete needs to be poured into the lower chord tube 52 and the upper chord tube 53. At least one slurry outlet is provided at intervals on the lower chord tube 52 and the upper chord tube 53. The arch slurry discharge assembly 10 includes multiple groups. Specifically, the number of the arch slurry discharge assembly 10 is the same as the number of the slurry outlets, and the multiple groups of the arch slurry discharge assembly 10 are respectively provided at the multiple slurry outlets.

[0032] The dome slurry discharge assembly 10 includes a slurry discharge pipe 11, a slurry storage barrel 13, an observation window 15 and two rows of slurry pipes 17. One end of the slurry discharge pipe 11 is used to connect with the corresponding slurry outlet. The slurry storage barrel 13 is roughly in the shape of a hollow cylinder, and one end of the slurry storage barrel 13 is connected to the other end of the slurry discharge pipe 11. Specifically, a fixed opening (not shown) is opened at one end of the slurry storage barrel 13, and the end of the slurry discharge pipe 11 away from the slurry outlet is fixed at the fixed opening so that the slurry storage barrel 13 is connected with the slurry discharge pipe 11. In this embodiment, the other end of the slurry storage barrel 13, that is, the end of the slurry storage barrel 13 away from the slurry discharge pipe 11 is also provided with an installation opening 131 for connecting to a vacuum system (not shown). The observation window 15 is installed on the slurry storage barrel 13. Specifically, a window (not shown) is opened on the peripheral wall of the slurry storage barrel 13, and the observation window 15 is installed at the window of the slurry storage barrel 13. The observation window 15 can be made of transparent materials such as glass, and is used to observe the slurry in the slurry storage barrel 13. Two rows of slurry pipes 17 are connected to the side of the slurry storage barrel 13, and the two rows of slurry pipes 17 are respectively located at opposite ends of the slurry storage barrel 13. Specifically, connecting holes 133 are respectively opened at both ends of the side of the slurry storage barrel 13, and the inlet ends of the two rows of slurry pipes 17 are respectively fixed to the two connecting holes 133, and are connected to the slurry storage barrel 13 through the corresponding connecting holes 133. In this embodiment, the slurry discharge pipe 17 is in a curved pipe shape, and the outlet end of the slurry discharge pipe 17 is located below the inlet end of the slurry discharge pipe 17, so as to facilitate the smooth discharge of the slurry. In addition, in this embodiment, the two rows of slurry pipes 17 are equipped with valves 18, and the valves 18 are used to control the opening and closing of the corresponding slurry discharge pipes 17.

[0033] The slurry recovery assembly 30 includes a collection funnel 31, a recovery pipe 32 and a collecting container 34. The collection funnel 31 is located below the outlet ends of the two rows of slurry pipes 17 to receive the slurry discharged from the two rows of slurry pipes 17; the recovery pipe 32 is laid along the arch rib line and connected to the collection funnel 31, and the collecting container 34 is arranged on the arch foot side and connected to the recovery pipe 32 through a guide pipe 39.

[0034] In this embodiment, a plurality of aggregate hoppers 31 are provided corresponding to the plurality of arch slurry discharge assemblies 10, and the plurality of aggregate hoppers 31 respectively receive the slurry discharged from the slurry discharge pipes 17 of the plurality of arch slurry discharge assemblies 10. The recovery pipe 32 is laid on the lower chord maintenance ladder 60 of the arch rib 50, and the recovery pipe 32 includes a plurality of pipe segments 321 and a tee pipe 323 connecting two adjacent pipe segments 321, and the two adjacent pipe segments 321 are respectively connected to the two pipe openings of the tee pipe 323, and the other pipe opening of the tee pipe 323 is connected to the aggregate hopper 31. Specifically, the aggregate hopper 31 provided at the lower chord pipe 53 is directly connected to the pipe opening of the tee pipe 323 at the corresponding position. In this embodiment, the aggregate hopper 31 provided at the lower chord pipe 53 is directly connected to the pipe opening of the tee pipe 323 at the corresponding position. 1 is detachably connected to the pipe mouth of the three-way pipe 323, specifically: a plurality of limit plates 35 are fixed on the outer peripheral wall of the discharge end of the collecting funnel 31, and the plurality of limit plates 35 are arranged at intervals along the circumference of the discharge end of the collecting funnel 31, and a clamping groove (not marked) is formed between each limit plate 35 and the outer peripheral surface of the discharge end of the collecting funnel 31; the three-way pipe 323 is sleeved on the discharge end of the collecting funnel 31 through the corresponding pipe mouth and clamped in the clamping groove, so that the collecting funnel 31 and the three-way pipe 323 are detachably connected together.

[0035] The discharge end of the gathering funnel 31 provided at the upper chord tube 53 is connected to the corresponding pipe mouth of the three-way pipe 323 through the extension pipe 33, or the discharge end of the gathering funnel 31 provided at the upper chord tube 53 is connected to the feed end of a gathering funnel 31 at the lower chord tube 52 through the extension pipe 33, so as to communicate with the three-way pipe 323 corresponding to the gathering funnel 31 through the gathering funnel 31. In this embodiment, the discharge end of the gathering funnel 31 provided at the upper chord tube 53 is detachably connected to the extension pipe 33, specifically: one end of the extension pipe 33 is sleeved outside the discharge end of the gathering funnel 31 through the corresponding pipe mouth and clamped in the clamping groove of the gathering funnel 31, so that the gathering funnel 31 and the extension pipe 33 are detachably connected together. The free end of the extension tube 33 of a gathering funnel 31 arranged at the upper chord tube 53 is detachably connected to the pipe mouth of the corresponding three-way pipe 323 by means of existing card connection, plug-in connection, etc., or the end of the extension tube 33 away from the gathering funnel 31 extends into the feeding end of a gathering funnel 31.

[0036] In this embodiment, the slurry discharge pipe 11 is coaxially arranged with the slurry storage barrel 13, and the end of the slurry discharge pipe 11 away from the slurry discharge port gradually tilts away from the collecting funnel 31. This arrangement makes it easier to install the collecting funnel 31 and the slurry storage barrel 13 in a smaller space of the vault, and makes it easier for the slurry discharge pipe 17 to dock with the collecting funnel 31.

[0037] In this embodiment, hooks 36 are fixed on the outer walls of the slurry storage barrel 13 and the outer walls of the collecting funnel 31 , and the two hooks 36 are connected together by a wire rope 37 to ensure that the slurry discharge pipe 17 and the collecting funnel 31 remain in a docking state.

[0038] In this embodiment, a three-proof cloth 38 is laid below the recovery pipe 32. The in-pipe pouring arch slurry recovery system also includes a slurry receiving platform 40, which is fixed on the arch rib 50 and located below the arch slurry discharge assembly 10 and the collection funnel 31.

[0039] In this embodiment, the collection container 34 is a recovery tank provided at the arch foot side, and the collection container 34 is connected to the recovery pipeline 3 through the guide pipe 39. The collection container 34 is used to collect waste slurry and sewage during the whole process of concrete pouring construction, so as to facilitate centralized recovery and treatment by subsequent tank trucks.

[0040] During the pouring construction of self-compacting concrete in the pipe, a bottom-up pumping method is adopted to transport the concrete at the arch foot position to the corresponding positions in the upper chord pipe 53 and the lower chord pipe 52 on the arch through a pump pipe (not shown). In this process, the two rows of slurry pipes 17 can be closed by valve 18, and then the vacuum system is connected to the installation port 131 of the slurry storage barrel 13. During the pouring process, the vacuum system is used to vacuum the pipe, which can further improve the compactness of the concrete filling in the pipe. During the pouring, when it is judged by knocking that the concrete enters the slurry storage barrel 13, the pumping speed should be slowed down. When the concrete reaches the preset height in the slurry storage barrel 13, the vacuum system is turned off and the vacuum system is taken out from the installation port 131 to relieve the pressure through the installation port 131. The quality of the concrete in the slurry storage barrel 13 is checked through the observation window 15. When "good material" appears, for example, if there is no obvious fall or bubble generation within 5 minutes, the pouring is stopped. Subsequently, the valve 18 is opened to drain the waste slurry entering the slurry storage barrel 13 to the collecting hopper 31. The waste slurry entering the collecting hopper 31 enters the collecting container 34 at the arch foot along the recovery pipe 32 and the guide pipe 39 under the action of gravity for collection.

[0041] After each string pipe is filled, the pump pipe should be cleaned in time to reduce the pollution impact on secondary use. In addition, before filling, it is necessary to introduce a lubricant into the string pipe for lubrication. When in use, the collection funnel 31 can be removed from the tee pipe 323, and one end of the pump pipe can be connected to the tee pipe 323, so that the lubrication waste and the pipe washing waste water can be directly connected to the recovery pipe 32 for recycling through the pump pipe.

[0042] The in-pipe pouring arch slurry recovery system of the present invention temporarily stores the slurry discharged from the slurry outlet by setting a slurry storage barrel 13, plays a buffering role, and effectively restrains the occurrence of splash flow; the construction worker can conveniently observe the slurry discharged from the slurry outlet through the observation window 15 set on the slurry storage barrel 13, so as to timely judge the pouring progress and material state of the concrete in the pipe. The slurry discharge pipe 17 set at both ends of the slurry storage barrel 13 can maintain the pressure balance inside and outside the slurry storage barrel 13 to ensure the smooth outflow of waste. The slurry discharged from the slurry discharge pipe 17 can enter the recovery pipe 32 through the nearest aggregate funnel 31, and is transported to the collection container 34 on the arch foot side under the action of its own gravity, so as to realize the recovery of tailings and cleaning waste, and realize the real-time synchronous and effective recovery and treatment of sewage such as slurry discharge from the arch slurry outlet during the concrete pouring process, so as to avoid the waste and environmental pollution caused by the direct discharge of concrete tailings and cleaning waste, and effectively avoid the risk of falling objects from high altitude.

[0043] In the in-pipe pouring vault slurry recovery system of the present invention, the collecting funnel 31 of the slurry recovery assembly 30 is detachably connected to the tee pipe 323 of the recovery pipe 32. After the collecting funnel 31 is removed, one end of the pump pipe is connected to the tee pipe 323, and the waste material of the pipe lubrication and the waste water of the pipe washing can be directly connected to the recovery pipe 32 for recovery through the pump pipe. In addition, the slurry storage barrel 13 and the collecting funnel 31 on the lower chord pipe 52 and the upper chord pipe 53 can share a recovery pipe 32, which reduces the materials required for the in-pipe pouring vault slurry recovery system and improves the efficiency of laying the in-pipe pouring vault slurry recovery system.

[0044] The in-pipe pouring vault slurry recovery system of the present invention, the slurry receiving platform 40 arranged below the vault slurry discharge assembly 10 and the three-proof cloth 38 laid under the recovery pipe 32 can receive the waste accidentally leaked during the vault slurry discharge, pump pipe washing waste water and pipe lubrication waste access to the three-way pipe 323 and the drainage of the recovery pipe 32, thereby further reducing the risk of falling objects from high altitudes and effectively preventing concrete and sewage from directly entering natural water bodies or soil.

[0045] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. An in-pipe pouring vault slurry recovery system, characterized by: It includes an arch slurry discharge component and a slurry discharge recovery component, the arch slurry discharge component includes a slurry discharge pipe, a slurry storage barrel, an observation window and two rows of slurry pipes, one end of the slurry discharge pipe is used to connect with the slurry outlet arranged on the arch of the arch rib; one end of the slurry storage barrel is connected to the other end of the slurry discharge pipe; the observation window is installed on the slurry storage barrel, and is used to observe the slurry condition in the slurry storage barrel; the two slurry discharge pipes are connected to the side of the slurry storage barrel, and the two slurry discharge pipes are respectively located at the opposite ends of the slurry storage barrel; the slurry discharge recovery component includes an aggregate funnel, a recovery pipeline and a collecting container, the aggregate funnel is located below the two slurry discharge pipes to receive the slurry discharged from the two slurry discharge pipes, the recovery pipeline is laid along the arch rib line and connected to the aggregate funnel, and the collecting container is arranged on the arch foot side and communicated with the recovery pipeline.

2. The in-pipe pouring vault slurry recovery system according to claim 1, characterized in that: The slurry discharge pipe is coaxially arranged with the slurry storage barrel, and one end of the slurry discharge pipe away from the slurry discharge port is inclined in a direction away from the aggregate hopper.

3. The in-pipe pouring vault slurry recovery system according to claim 1, characterized in that: The other end of the slurry storage barrel is provided with a mounting port for connecting to a vacuum system, and both slurry discharge pipes are provided with valves.

4. The in-pipe pouring vault slurry recovery system according to claim 1, characterized in that: Hooks are fixed on the outer wall of the slurry storage barrel and the outer wall of the aggregate hopper, and the two hooks are connected together by a steel wire rope.

5. The in-pipe pouring vault slurry recovery system according to claim 1, characterized in that: The recovery pipeline includes a plurality of pipeline segments and a tee pipe connecting two adjacent pipeline segments, wherein the two adjacent pipeline segments are respectively connected to two pipe openings of the tee pipe, and the other pipe opening of the tee pipe is connected to the gathering funnel.

6. The in-pipe pouring vault slurry recovery system according to claim 5, characterized in that: The vault slurry discharge assembly comprises a plurality of groups, and the slurry outlet pipes of the plurality of groups of the vault slurry discharge assembly are respectively connected to the slurry outlet of the upper chord pipe of the arch rib and the slurry outlet of the lower chord pipe of the arch rib; the plurality of aggregate funnels are provided corresponding to the plurality of groups of the vault slurry discharge assembly, and the plurality of aggregate funnels respectively receive the slurry discharged from the slurry outlet pipes of the plurality of groups of the vault slurry discharge assembly.

7. The in-pipe pouring vault slurry recovery system according to claim 6, characterized in that: The recovery pipeline is laid on the lower chord maintenance ladder of the arch rib; the aggregate funnel arranged at the lower chord pipe is directly connected to the pipe mouth of the tee pipe at the corresponding position; the discharge end of the aggregate funnel arranged at the upper chord pipe is connected to the corresponding pipe mouth of the tee pipe through an extension pipe, or is connected to the feed end of the aggregate funnel at a lower chord pipe through an extension pipe, thereby being connected to the corresponding tee pipe through the aggregate funnel.

8. The in-pipe pouring vault slurry recovery system according to claim 7, characterized in that: The gathering funnel is detachably connected to the pipe opening or the extension pipe of the three-way pipe.

9. The in-pipe pouring vault slurry recovery system according to claim 1, characterized in that: A three-proof cloth is laid under the recovery pipeline.

10. The in-pipe pouring vault slurry recovery system according to claim 7, characterized in that: The in-pipe pouring arch slurry drainage and recovery system also includes a slurry receiving platform, which is fixed on the arch rib and located below the arch slurry drainage component and the aggregate hopper.

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