Concentrated pulping system for tunnel

Abstract

The utility model relates to a tunnel centralized slurrying system which mainly comprises an ash storage tank ash conveying system, an automatic slurrying system and a blowdown system, the ash storage tank ash conveying system comprises an ash conveying device and an ash storage tank, and the ash conveying device is used for conveying cement into the ash storage tank; the automatic slurrying system comprises a feeding unit, a high-speed slurrying machine, a centralized control unit and a feeding unit, the feeding unit is connected with the ash storage tank through a pipeline and used for conveying cement to the high-speed slurrying machine, the high-speed slurrying machine is used for automatically slurrying, and the centralized control unit is used for presetting and controlling the conveying amount of the cement and water entering the high-speed slurrying machine. The feeding unit is connected with a discharge port of the high-speed pulping machine, and the feeding unit is used for conveying materials which are made by the high-speed pulping machine to a preset position; the sewage discharge system comprises a sewage discharge pool and a vertical sewage discharge pump, the vertical sewage discharge pump is located in the sewage discharge pool, and the sewage discharge system is used for treating and discharging sewage. The centralized pulping system for the tunnel can greatly save manpower and reduce labor intensity.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel grouting, and in particular to a tunnel centralized grouting system. Background Art

[0002] With the development of the domestic economy, underground space has been increasingly developed and utilized, and tunnels play an important role in the fields of water conservancy and transportation. The grouting project of long-distance tunnels is huge in scale, with the characteristics of long tunnel axis, tight traffic in the tunnel, large construction interference, no traffic guarantee on the off-site dedicated road during the rainy season, and high grouting pressure requirements. Considering the limitations of the layout conditions in the tunnel, the excavation progress, the total progress of the grouting project and the demand for grout, how to transport cement and cement slurry to the working face in time has important engineering practice significance. Utility Model Content

[0003] The embodiment of the present application provides a centralized grouting system for a tunnel, which can overcome the problems of excessive grouting slurry loss due to the long axis of a long tunnel, congested traffic in the tunnel, large construction interference, and unsecured traffic on off-site dedicated roads during the rainy season.

[0004] The centralized cement making system for tunnels provided in the embodiment of the present application comprises: an ash storage tank ash conveying system, the ash storage tank ash conveying system comprises an ash conveying device and an ash storage tank, the ash conveying device is used to convey cement into the ash storage tank;

[0005] An automated pulping system, the automated pulping system comprising a feeding unit, a high-speed pulping machine, a centralized control unit and a feeding unit, the feeding unit being connected to the ash storage tank via a pipeline and used to convey cement to the high-speed pulping machine, the high-speed pulping machine being used to perform automatic pulping, the centralized control unit being used to preset and control the conveying amount of cement and water entering the high-speed pulping machine, the feeding unit being connected to the discharge port of the high-speed pulping machine, and being used to convey the material pulped by the high-speed pulping machine to a preset position;

[0006] A sewage system, the sewage system comprises a sewage tank and a vertical sewage pump, the vertical sewage pump is located in the sewage tank, and the sewage system is used for treating and discharging sewage.

[0007] In addition, the tunnel centralized pulping system provided in the embodiment of the present application may also have the following additional technical features:

[0008] In an optional solution, the centralized control unit includes a centralized control module, a weighing module and an electromagnetic flowmeter;

[0009] The weighing module and the electromagnetic flowmeter are electrically connected to the centralized control module respectively; the weighing module is arranged at the feed port of the high-speed pulping machine and is used to limit the amount of ash added; the electromagnetic flowmeter is arranged at the water delivery steel pipe and is used to limit the amount of water added.

[0010] In an optional scheme, the feeding unit includes a ash adding funnel and a screw conveyor. The ash adding funnel is connected to the ash storage tank through a pipeline and is used to receive cement in the ash storage tank. The screw conveyor is located between the ash adding funnel and the high-speed pulping machine. The screw conveyor is used to transport the cement in the ash adding funnel to the feed port of the high-speed pulping machine.

[0011] In an optional solution, the feeding unit includes a slurry storage tank, a slurry delivery pump and a slurry delivery pipe, the slurry storage tank is connected to the discharge port of the high-speed pulping machine, and the slurry delivery pump is connected to the slurry storage tank and the slurry delivery pipe;

[0012] The high-speed pulping machine mixes the slurry and releases the slurry into the slurry storage tank. The slurry delivery pump delivers the slurry in the slurry storage tank to a preset position through the slurry delivery pipe.

[0013] In an optional solution, the ash conveying device includes a cement transport vehicle and a medium-pressure mobile air compressor. The cement transport vehicle is used to transport cement to the ash storage tank, and the medium-pressure mobile air compressor is used to assist in ash conveying. A dust collector is provided on the top of the ash storage tank.

[0014] In an optional solution, the tunnel centralized slurry system also includes a construction transformer, a water supply system and an ash storage platform;

[0015] The construction transformer is electrically connected to the automated pulping system and provides power. The water supply system includes a main water supply pipeline, which is connected to the water delivery steel pipe. The ash storage platform is used for storing bagged cement.

[0016] In an optional scheme, the centralized slurry making system for the tunnel also includes a tunnel expansion section, in which the automated slurry making system, the sewage discharge system, the construction transformer and the ash storage platform are located; the side and top arches of the tunnel expansion section are arranged with system anchor rods for support, and the side and top arch surfaces of the tunnel expansion section are sprayed with concrete, the system anchor rods include expansion shell type prestressed hollow anchor rods and water-expansion anchor rods, and the sprayed concrete is C30 nano-imitation steel fiber concrete, and the spraying thickness is at least 15 cm.

[0017] In an optional solution, the ash storage platform is constructed with a pipe rack, and the upper surface of the ash storage platform is paved with wooden boards and tarpaulin. The ash storage platform and the ash adding funnel are connected with wooden boards, and are surrounded by colored steel tiles for fencing and roofing.

[0018] In an optional scheme, the number of the construction transformers is two, and the two construction transformers are arranged side by side. The bottom of the construction transformer is provided with a transformer platform and a base plate in sequence. The transformer platform adopts M7.5 mortar-laid flagstones or a steel frame platform, and is surrounded by color steel tiles or iron fences. The base plate adopts a C10 concrete cast cushion layer.

[0019] In an optional solution, the sewage tank is located at the rear side of the construction transformer, the surroundings of the sewage tank are smoothed with concrete, and prefabricated wooden boards or steel mesh are laid on the upper part of the sewage tank.

[0020] The beneficial effects of the embodiments of the present application are:

[0021] The centralized slurry making system for tunnels in the embodiment of the present application can reduce cement dust and pollution by establishing a closed space through the ash storage tank and ash conveying system. In addition, the automated slurry making system can save a lot of manpower and reduce labor intensity. The system has strong slurry making capacity and high reliability, and can meet the slurry supply needs of high-intensity grouting operations. In addition, the automated slurry making system can also reduce slurry loss on the axis of long-distance tunnels, alleviate traffic congestion in construction tunnels, reduce interference between construction processes, and avoid the problem of insecure traffic on off-site dedicated roads during the rainy season. At the same time, cement and cement slurry can be delivered to the working face in a timely manner, thereby improving tunnel grouting efficiency, helping to reduce construction period, and creating good economic benefits.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of an automated pulping system provided in the present application in a specific embodiment;

[0024] Figure 2 A schematic diagram of the cross-sectional structure of the tunnel expansion part provided for this application;

[0025] Figure numerals: centralized control module 1, weighing module 2, electromagnetic flowmeter 3, ash adding funnel 4, screw conveyor 5, water supply steel pipe 6, high-speed pulping machine 7, slurry storage tank 8, slurry pump 9, slurry pipe 10, ash storage platform 11, expansion shell type prestressed hollow anchor rod 12, construction transformer 13, transformer platform 14, sewage tank 15, vertical sewage pump 16.

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0027] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0028] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0030] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0031] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0032] like Figure 1-2 As shown, an embodiment of the present application provides a tunnel centralized pulping system, which mainly includes an ash storage tank ash conveying system, an automatic pulping system and a sewage discharge system, wherein the ash storage tank ash conveying system includes an ash conveying device and an ash storage tank, and the ash conveying device is used to convey cement into the ash storage tank; the automatic pulping system includes a feeding unit, a high-speed pulping machine 7, a centralized control unit and a feeding unit, the feeding unit is connected to the ash storage tank through a pipeline and is used to convey cement to the high-speed pulping machine 7, the high-speed pulping machine 7 is used for automatic pulping, the centralized control unit is used to preset and control the delivery amount of cement and water entering the high-speed pulping machine 7, the feeding unit is connected to the discharge port of the high-speed pulping machine 7, and the feeding unit is used to convey the material pulped by the high-speed pulping machine 7 to a preset position; the sewage discharge system includes a sewage tank 15 and a vertical sewage pump 16, the vertical sewage pump 16 is located in the sewage tank 15, and the sewage discharge system is used to treat and discharge sewage.

[0033] The centralized slurry making system for tunnels in the embodiment of the present application can reduce cement dust and pollution by establishing a closed space through the ash storage tank and ash conveying system. In addition, the automated slurry making system can save a lot of manpower and reduce labor intensity. The system has strong slurry making capacity and high reliability, and can meet the slurry supply needs of high-intensity grouting operations. In addition, the automated slurry making system can also reduce slurry loss on the axis of long-distance tunnels, alleviate traffic congestion in construction tunnels, reduce interference between construction processes, and avoid the problem of insecure traffic on off-site dedicated roads during the rainy season. At the same time, cement and cement slurry can be delivered to the working face in a timely manner, thereby improving tunnel grouting efficiency, helping to reduce construction period, and creating good economic benefits.

[0034] like Figure 1 As shown, in a specific embodiment, the centralized control unit includes a centralized control module 1, a weighing module 2 and an electromagnetic flowmeter 3; the weighing module 2 and the electromagnetic flowmeter 3 are electrically connected to the centralized control module 1 respectively, the weighing module 2 is arranged at the feed port of the high-speed pulping machine 7 and is used to limit the amount of ash added, and the electromagnetic flowmeter 3 is arranged at the water delivery steel pipe 6 and is used to limit the amount of water added. The amount of water and ash required for mixing a bucket of pulp is set in advance in the centralized control module 1, the centralized control module 1 controls the amount of ash and water added according to the set value, the weighing module 2 limits the amount of ash added, and the electromagnetic flowmeter 3 limits the amount of water added, thereby realizing automatic pulping.

[0035] In addition, the feeding unit includes a ash adding hopper 4 and a screw conveyor 5. The ash adding hopper 4 is connected to the ash storage tank through a pipeline and is used to receive cement in the ash storage tank. The screw conveyor 5 is located between the ash adding hopper 4 and the high-speed pulping machine 7. The screw conveyor 5 is used to convey the cement in the ash adding hopper 4 to the feeding port of the high-speed pulping machine 7. The feeding unit includes a slurry storage tank 8, a slurry delivery pump 9 and a slurry delivery pipe 10. The slurry storage tank 8 is connected to the discharge port of the high-speed pulping machine 7. The slurry delivery pump 9 connects the slurry storage tank 8 and the slurry delivery pipe 10. The high-speed pulping machine 7 mixes the slurry and releases it to the slurry storage tank 8. The slurry delivery pump 9 delivers the slurry in the slurry storage tank 8 to the preset position through the slurry delivery pipe 10. The automated pulping system is assisted by a crane during installation. It is placed according to the designed position. When assembling the equipment, pay attention to the connection process of various equipment.

[0036] In a specific embodiment, the ash conveying device includes a cement transport truck and a medium-pressure mobile air compressor. The cement transport truck is used to transport cement to the ash storage tank, and the medium-pressure mobile air compressor is used for auxiliary ash conveying; a dust collector is arranged on the top of the ash storage tank. Specifically, 3 to 4 cement transport trucks can be grouped together. The cement transport truck is a 20t cement transport truck equipped with a Φ108mm ash conveying pipe to ensure cement conveying efficiency; in addition, a 20m3 medium-pressure mobile air compressor is spared. When the cement transport truck's own ash conveying device cannot meet the ash conveying time requirement, the air compressor can be used for auxiliary ash conveying. In actual use, the ash storage volume can be preliminarily calculated and the ash storage tank can be arranged according to the overall construction schedule and the daily slurry demand. The cement transport truck or the medium-pressure mobile air compressor is sent into the ash storage tank through the ash conveying pipe, and a dust collector is installed on the top of the tank to prevent cement dust from affecting the surrounding environment.

[0037] like Figure 1-2 As shown, in a specific embodiment, the tunnel centralized pulping system also includes a construction transformer 13, a water supply system and an ash storage platform 11; the construction transformer 13 is electrically connected to the automated pulping system and provides power, the water supply system includes a main water supply pipeline, the main water supply pipeline is connected to the water delivery steel pipe 6, and the ash storage platform 11 is used for storing bagged cement.

[0038] like Figure 2 As shown, in a specific embodiment, the centralized slurry making system of the tunnel also includes a tunnel expansion part. The final state of the tunnel expansion part after expansion meets the need to place two construction transformers 13, a slurry transfer station, a slurry making station, a sewage pool 15 and other temporary facilities, that is, the automated slurry making system, the sewage system, the construction transformer 13 and the ash storage platform 11 are located in the tunnel expansion part. In addition, the side top arch of the tunnel expansion part is arranged with a system anchor rod for support, and the surface of the side top arch of the tunnel expansion part is sprayed with concrete, wherein the system anchor rod support adopts a φ32mm expansion shell prestressed hollow anchor rod 12, L=4.5m@1×1m, and a φ33mm water expansion anchor rod is randomly applied locally, L=4m, and the sprayed concrete is C30 nano steel fiber concrete, and the spraying thickness is approximately 15cm.

[0039] like Figure 1 As shown, in a specific embodiment, the ash storage platform 11 is constructed with a pipe rack to store bagged cement. The ash storage platform 11 is 2.2m above the ground, the vertical spacing L of the platform uprights is 0.8m, the horizontal spacing b is 0.8m, the horizontal spacing (pitch) h is 0.8m, the scissors brace is evenly arranged in the horizontal and vertical directions, and the upper surface is paved with wooden boards and tarpaulin; the ash storage platform 11 is designed to be as flush as possible with the height of the ash adding funnel 4, the ash storage platform 11 and the ash adding funnel 4 are connected by wooden boards, and are surrounded by colored steel tiles and covered with a roof. In addition, the water supply system is established by transferring from the main water supply pipeline of the system using a Φ50mm water delivery steel pipe 6.

[0040] like Figure 2 As shown, in a specific embodiment, the number of construction transformers 13 is two, and two 400KVA construction transformers 13 are placed side by side, with a reserved size of 4.0m (length) × 4.0m (width). The bottom of the construction transformer 13 is sequentially provided with a transformer platform 14 and a base plate, and the base plate is made of C10 concrete with a 10cm cushion layer. The transformer platform 14 is placed with M7.5 mortar-laid flagstones or a homemade steel frame platform, with a size of 2.0×2.0×1.0m (length×width×height), and is surrounded by colored steel tiles or iron fences.

[0041] The sewage tank 15 is mainly set up behind the construction transformer 13. A sewage tank 15 of 2m (length) × 4m (width) × 1.5m (height) is excavated on the horizon. The surrounding areas are leveled with concrete. A 15kw vertical sewage pump 16 is placed in the tank. After the sewage is precipitated through the system sewage tank 15, the clean water is directly pumped to the drainage hole. The solid slag after precipitation is cleaned by a special person, bagged in time, and transported to the designated slag dump by a truck. Prefabricated wooden boards or steel meshes are laid on the top of the sewage tank 15 to ensure the normal passage of vehicles or pedestrians.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tunnel centralized pulping system, characterized in that: include: An ash storage tank ash conveying system, the ash storage tank ash conveying system comprises an ash conveying device and an ash storage tank, the ash conveying device is used to convey cement into the ash storage tank; An automated pulping system, the automated pulping system comprising a feeding unit, a high-speed pulping machine, a centralized control unit and a feeding unit, the feeding unit being connected to the ash storage tank via a pipeline and used to convey cement to the high-speed pulping machine, the high-speed pulping machine being used to perform automatic pulping, the centralized control unit being used to preset and control the conveying amount of cement and water entering the high-speed pulping machine, the feeding unit being connected to the discharge port of the high-speed pulping machine, and being used to convey the material pulped by the high-speed pulping machine to a preset position; A sewage system, the sewage system comprises a sewage tank and a vertical sewage pump, the vertical sewage pump is located in the sewage tank, and the sewage system is used for treating and discharging sewage.

2. The tunnel centralized pulping system according to claim 1, characterized in that: The centralized control unit includes a centralized control module, a weighing module and an electromagnetic flowmeter; The weighing module and the electromagnetic flowmeter are electrically connected to the centralized control module respectively; the weighing module is arranged at the feed port of the high-speed pulping machine and is used to limit the amount of ash added; the electromagnetic flowmeter is arranged at the water delivery steel pipe and is used to limit the amount of water added.

3. The tunnel centralized pulping system according to claim 2, characterized in that: The feeding unit includes a ash adding hopper and a screw conveyor. The ash adding hopper is connected to the ash storage tank through a pipeline and is used to receive cement in the ash storage tank. The screw conveyor is located between the ash adding hopper and the high-speed pulping machine. The screw conveyor is used to transport the cement in the ash adding hopper to the feeding port of the high-speed pulping machine.

4. The tunnel centralized pulping system according to claim 3, characterized in that: The feeding unit comprises a slurry storage tank, a slurry delivery pump and a slurry delivery pipe, the slurry storage tank is connected to the discharge port of the high-speed pulping machine, and the slurry delivery pump is connected to the slurry storage tank and the slurry delivery pipe; The high-speed pulping machine mixes the slurry and releases the slurry into the slurry storage tank. The slurry delivery pump delivers the slurry in the slurry storage tank to a preset position through the slurry delivery pipe.

5. The tunnel centralized pulping system according to claim 3, characterized in that: The ash conveying device includes a cement transport vehicle and a medium-pressure mobile air compressor. The cement transport vehicle is used to transport cement to the ash storage tank, and the medium-pressure mobile air compressor is used to assist in ash conveying. A dust collector is arranged on the top of the ash storage tank.

6. The tunnel centralized pulping system according to any one of claims 4-5, characterized in that: It also includes construction transformers, water supply systems and ash storage platforms; The construction transformer is electrically connected to the automated pulping system and provides power. The water supply system includes a main water supply pipeline, which is connected to the water delivery steel pipe. The ash storage platform is used for storing bagged cement.

7. The tunnel centralized pulping system according to claim 6, characterized in that: It also includes a tunnel expansion section, in which the automated pulping system, the sewage discharge system, the construction transformer and the ash storage platform are located; the side and top arches of the tunnel expansion section are arranged with system anchor rods for support, and the surface of the side and top arches of the tunnel expansion section is sprayed with concrete, the system anchor rods include expansion shell type prestressed hollow anchor rods and water-expansion anchor rods, and the sprayed concrete is C30 nano-imitation steel fiber concrete, and the spraying thickness is at least 15 cm.

8. The tunnel centralized pulping system according to claim 7, characterized in that: The ash storage platform is constructed by using a pipe rack, and the upper surface of the ash storage platform is paved with wooden boards and linoleum cloth. The ash storage platform and the ash adding hopper are connected by wooden boards, and are surrounded by colored steel tiles for fencing and roofing.

9. The tunnel centralized pulping system according to claim 7, characterized in that: There are two construction transformers, which are arranged side by side. A transformer platform and a base plate are provided at the bottom of the construction transformer in sequence. The transformer platform is made of M7.5 mortar-laid flagstones or a steel frame platform, and is surrounded by colored steel tiles or iron fences. The base plate is made of a C10 concrete cast cushion layer.

10. The tunnel centralized pulping system according to claim 7, characterized in that: The sewage tank is located at the rear side of the construction transformer. The surrounding areas of the sewage tank are smoothed with concrete, and prefabricated wooden boards or steel mesh are laid on the upper part of the sewage tank.

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