Shield operation two-component slurry integrated storage and preparation conveying system and use method

Abstract

The invention relates to the technical field of shield construction, in particular to a shield operation bi-component slurry integrated storage and preparation conveying system and a use method.The shield operation bi-component slurry integrated storage and preparation conveying system comprises a structure supporting assembly and a dry powder supply system, the front end of the structure supporting assembly is connected with the tail of a shield tunneling machine, and side platforms are installed on the two sides of the structure supporting assembly correspondingly; a slurry mixing system, a slurry storage system and an automatic control system are mounted on the side platform, and a fluid supply system is mounted in the automatic control system; the discharging end of the dry powder supply system is communicated with the slurry mixing system, the discharging end of the slurry mixing system is communicated with the slurry storage system, the discharging end of the slurry storage system is communicated with the shield tunneling machine, and the discharging end of the fluid supply system is communicated with the slurry mixing system. The automatic control system controls the material delivery amount of the dry powder supply system, the fluid supply system, the slurry mixing system and the slurry storage system. The technical problem that synchronous grouting equipment in the prior art occupies a large space of a trolley and cannot run synchronously with a shield tunneling machine is solved.

Description

Technical Field

[0001] The invention relates to the technical field of shield construction, and in particular to a shield operation two-component slurry integrated storage and preparation and conveying system and a use method thereof. Background Art

[0002] With the rapid progress of underground railway construction, shield construction technology has been widely used due to its high efficiency, safety and environmental protection characteristics. During the shield advancement process, the synchronous grouting process plays a key role in controlling ground settlement and limiting surrounding rock deformation. At present, synchronous grouting materials are mainly divided into single-component slurry and two-component slurry. Among them, two-component slurry is highly favored in shield construction in soft soil and water-rich strata due to its rapid solidification and early high strength characteristics. However, traditional two-component grouting equipment needs to prepare component A cement slurry on the ground and transport it to the tunnel by rail electric vehicles. As the construction progress deepens, the transportation distance is extended, which affects the construction efficiency and increases energy consumption. In addition, pipeline transportation is prone to blockage, and long-term non-grouting will lead to waste slurry problems.

[0003] This technology effectively solves the above-mentioned problem by installing the complete equipment of the two-component grouting system on a rail trolley and moving it synchronously with the shield machine. Nevertheless, due to the large grouting volume of the existing synchronous grouting system, if the slurry is prepared in the tunnel, it will occupy a large amount of trolley space. At present, the only technical solution is to install the entire set of equipment for secondary grouting on a rail trolley and operate it synchronously with the shield machine. Since secondary grouting is a supplement to synchronous grouting and the grouting volume is small, the equipment is compact and will not cause a large amount of trolley space to be occupied. Summary of the invention

[0004] The purpose of the present invention is to provide a two-component slurry integrated storage and preparation and delivery system for shield operations and a method of use, so as to solve the above-mentioned problems and solve the technical problem that the synchronous grouting equipment in the prior art occupies a large amount of space on the trolley and cannot run synchronously with the shield machine.

[0005] To achieve the above-mentioned object, the present invention provides the following scheme: a shield operation two-component slurry integrated storage and preparation and delivery system, comprising a structural support component, a dry powder supply system is installed on the top surface of the structural support component, the front end of the structural support component is connected to the tail of the shield machine, and side platforms are installed on the left and right sides of the structural support component, respectively, and a slurry mixing system, a slurry storage system, and an automatic control system are installed on the side platforms in sequence from back to front, and a fluid supply system is installed in the automatic control system;

[0006] The discharge end of the dry powder supply system is connected to the slurry mixing system, the discharge end of the slurry mixing system is connected to the slurry storage system, the discharge end of the slurry storage system is connected to the shield machine, the discharge end of the fluid supply system is connected to the slurry mixing system, and the automatic control system controls the amount of material delivered by the dry powder supply system, the fluid supply system, the slurry mixing system, and the slurry storage system.

[0007] Preferably, the structural support assembly includes a dry powder supply system including two rows of columns, a top platform is fixedly connected between the top surfaces of the two rows of columns, each row of columns is rollingly set on a slide rail, the front end of the column is connected to the tail of the shield machine, the dry powder supply system is installed on the top platform, the rear side of the rear row of columns and the front side of the front row of columns are respectively equipped with side platforms, and each of the side platforms is respectively installed with the slurry mixing system, slurry storage system, and automatic control system from back to front.

[0008] Preferably, the dry powder supply system includes a montmorillonite powder storage tank, a cement powder storage tank, and a horizontal screw conveyor. One montmorillonite powder storage tank and three cement powder storage tanks form a group. One montmorillonite powder storage tank in a group is connected to the three cement powder storage tanks through a dust recovery container. The three cement powder storage tanks in a group are connected to the slurry mixing system on the corresponding side through a horizontal screw conveyor. The montmorillonite powder storage tanks in each group are respectively connected to one horizontal screw conveyor, and the horizontal screw conveyor on the montmorillonite powder storage tank is connected to the slurry mixing system.

[0009] Preferably, the slurry mixing system includes two stirring tank bodies, the two stirring tank bodies are installed on the side platforms on the corresponding sides, the two stirring tank bodies are arranged up and down, the stirring tank body located above is connected to the horizontal screw conveyor on the corresponding side, the bottom of the stirring tank body located above is connected to the stirring tank body located below, the stirring tank body located below is connected to the inlet end of the first industrial hose pump, the end of the first industrial hose pump is connected to the shield machine, and stirring blades are provided inside the stirring tank body, and the stirring blades are driven by a stirring driver, and the stirring driver is installed on the stirring tank body.

[0010] Preferably, the slurry storage system includes two slurry storage tanks, which are installed on the side platforms on corresponding sides, and are arranged up and down. The upper slurry storage tank is connected to the outlet end of the first industrial hose pump, and the bottom of the upper slurry storage tank is connected to the lower slurry storage tank, which is connected to the inlet end of the second industrial hose pump, and the outlet end of the second industrial hose pump is connected to the stirring tank body. The slurry storage tank is provided with stirring blades, and the stirring blades are driven by a slurry storage motor, and the slurry storage motor is installed on the slurry storage tank.

[0011] Preferably, the automated control system includes an intelligent control station, which is installed on the side platform, and the fluid supply system is installed in the intelligent control station. The intelligent control station also has a main power distribution cabinet, a data monitoring cabinet, a frequency conversion control cabinet, a compressor unit, and a material storage control cabinet installed in it.

[0012] Preferably, the fluid supply system includes a stabilizer storage tank and a clean water pipeline. The stabilizer storage tank is connected to the feed end of a third industrial hose pump, and the discharge end of the third industrial hose pump is connected to the stirring tank body. A water pump is provided on the clean water pipeline, and one end of the clean water pipeline is connected to the stirring tank body. The slurry storage tank is connected to another clean water pipeline, and another water pump is provided on the clean water pipeline connected to the slurry storage tank.

[0013] A method for using a two-component slurry integrated storage and preparation and delivery system for shield operation, the method is used to implement the two-component slurry integrated storage and preparation and delivery system for shield operation described in the above scheme, comprising the following steps:

[0014] Step 1: transporting the material in the fluid supply system to the slurry mixing system for stirring;

[0015] Step 2: transporting the material in the dry powder supply system to the slurry mixing system for stirring;

[0016] Step 3: After the materials in the slurry mixing system are stirred evenly, they are sent to a slurry storage tank for temporary storage, and then the slurry to be used in the slurry storage tank is injected into the gaps in the surrounding rocks.

[0017] The present invention has the following technical effects:

[0018] Compared with the prior art, the two-component slurry integrated storage and preparation and transportation system for the shield operation tunnel provided by the present invention integrates the storage of raw materials, the preparation of slurry, and the transportation of slurry into the structural support system, thus realizing dust-free slurrying in the shield tunnel.

[0019] It eliminates the need for mixing outside the tunnel and long-distance horizontal transportation of slurry inside the tunnel, and optimizes the traditional shield construction organization design. It reduces the risk and problem of slurry abandonment due to long-term unused slurry, effectively improves construction efficiency and quality. It reduces the weight and volume of horizontal transportation caused by shield grouting, and greatly reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention from the right side viewing angle;

[0022] Figure 2 This is a schematic diagram of the back-end viewing angle structure of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the dry powder supply system of the present invention from the right side perspective;

[0024] Figure 4 It is a side view structural schematic diagram of the slurry mixing system of the present invention;

[0025] Figure 5 It is a schematic diagram of the top view of the slurry mixing system of the present invention;

[0026] Figure 6 It is a schematic diagram of the side structure of the slurry storage system of the present invention;

[0027] Figure 7 It is a schematic diagram of the top view of the slurry storage system of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the automatic control system of the present invention from a top view; Fig. 9 It is a schematic diagram of the connection of various components of the present invention.

[0029] Among them, 2. Structural support components; 3. Dry powder supply system; 31. Montmorillonite powder storage tank; 32. Cement powder storage tank; 33. Dust recovery container; 34. Horizontal screw conveyor; 4. Fluid supply system; 41. Stabilizer storage tank; 5. Slurry mixing system; 51. Mixing tank body; 52. Mixing drive; 6. Slurry storage system; 61. Slurry storage tank; 62. Slurry storage motor; 63. Second industrial hose pump; 7. Automation control system; 71. Intelligent control station; 72. Main distribution cabinet; 73. Data monitoring cabinet; 74. Frequency conversion control cabinet; 75. Compressor unit; 76. Material storage control cabinet. DETAILED DESCRIPTION

[0030] 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.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figure 1-8 As shown, this embodiment provides a shield operation two-component slurry integrated storage and preparation and transportation system, including a structural support component 2, a dry powder supply system 3 is installed on the top surface of the structural support component 2, the front end of the structural support component 2 is connected to the tail of the shield machine, and side platforms are installed on the left and right sides of the structural support component 2, and a slurry mixing system 5, a slurry storage system 6, and an automatic control system 7 are installed on the side platforms from back to front in sequence, and a fluid supply system 4 is installed in the automatic control system 7;

[0033] The discharge end of the dry powder supply system 3 is connected to the slurry mixing system 5, the discharge end of the slurry mixing system 5 is connected to the slurry storage system 6, the discharge end of the slurry storage system 6 is connected to the shield machine, the discharge end of the fluid supply system 4 is connected to the slurry mixing system 5, and the automatic control system 7 controls the amount of material delivered by the dry powder supply system 3, the fluid supply system 4, the slurry mixing system 5, and the slurry storage system 6.

[0034] A further optimized solution is provided, in which the structural support assembly 2 includes a dry powder supply system 3 including two rows of columns, and a top platform is fixedly connected between the top surfaces of the two rows of columns. Each row of columns is rollingly arranged on a slide rail, and the front end of the column is connected to the tail of the shield machine. The dry powder supply system 3 is installed on the top platform, and the rear side of the rear row of columns and the front side of the front row of columns have inherent side platforms respectively. A slurry mixing system 5, a slurry storage system 6, and an automatic control system 7 are respectively installed on each side platform from back to front. Further optimization scheme, the dry powder supply system 3 includes a montmorillonite powder storage tank 31, a cement powder storage tank 32, and a horizontal screw conveyor 34. One montmorillonite powder storage tank 31 and three cement powder storage tanks 32 form a group. One montmorillonite powder storage tank 31 in a group is connected with three cement powder storage tanks 32 through a dust recovery container 33. Three cement powder storage tanks 32 in a group are connected with the slurry mixing system 5 on the corresponding side through a horizontal screw conveyor 34. The montmorillonite powder storage tank 31 in each group is respectively connected with a horizontal screw conveyor 34, and the horizontal screw conveyor 34 on the montmorillonite powder storage tank 31 is connected with the slurry mixing system 5.

[0035] A further optimized solution is provided, in which the slurry mixing system 5 comprises two stirring tank bodies 51, and the two stirring tank bodies 51 are installed on side platforms on corresponding sides, and the two stirring tank bodies 51 are arranged up and down, and the stirring tank body 51 located at the upper side is connected to the horizontal screw conveyor 34 on the corresponding side, and the bottom of the stirring tank body 51 located at the upper side is connected to the stirring tank body 51 located at the lower side, and the stirring tank body 51 located at the lower side is connected to the inlet end of the first industrial hose pump, and the end of the first industrial hose pump is connected to the shield machine, and stirring blades are provided inside the stirring tank body 51, and the stirring blades are driven by a stirring driver 52, and the stirring driver 52 is installed on the stirring tank body 51.

[0036] A further optimized solution is provided, in which the slurry storage system 6 includes two slurry storage tanks 61, which are installed on side platforms on corresponding sides, and the two slurry storage tanks 61 are arranged up and down, and the upper slurry storage tank 61 is connected to the outlet end of the first industrial hose pump, and the bottom of the upper slurry storage tank 61 is connected to the lower slurry storage tank 61, and the slurry storage tank 61 is connected to the inlet end of the second industrial hose pump 63, and the outlet end of the second industrial hose pump 63 is connected to the stirring tank body 51, and the slurry storage tank 61 is provided with stirring blades, and the stirring blades are driven by a slurry storage motor 62, and the slurry storage motor 62 is installed on the slurry storage tank 61.

[0037] To further optimize the solution, the automated control system 7 includes an intelligent control station 71, which is installed on a side platform. The fluid supply system 4 is installed in the intelligent control station 71. The intelligent control station 71 also includes a main distribution cabinet 72, a data monitoring cabinet 73, a frequency conversion control cabinet 74, a compressor unit 75, and a material storage control cabinet 76.

[0038] Intelligent control station 71: As the core of the whole system, the intelligent control station is installed on the side platform and is responsible for receiving, processing and sending various signals. It realizes control through the following methods:

[0039] Main distribution cabinet 72: Responsible for the power distribution of the entire device, ensuring that each device operates at the appropriate voltage and current. The control method is to monitor and adjust the power supply through automatic switches and circuit breakers.

[0040] Data monitoring cabinet 73: collects and processes data from various sensors and monitoring equipment, such as material level, temperature, pressure, etc. Through data analysis, it realizes real-time monitoring and adjustment of the production process.

[0041] Fluid supply system 4: installed in the intelligent control station 71, mainly responsible for the transportation and distribution of the mixed cement slurry, and secondarily responsible for adding the water in the water tank to the mixing tank 51. Its control method includes: using a variable frequency pump to accurately control the flow and pressure to ensure a stable supply of fluid. Automatic switching and control of the fluid is achieved through solenoid valves and pneumatic valves.

[0042] Frequency conversion control cabinet 74: used to control the operation of the stirring drive, mainly including the following control methods: adjusting the stirring drive speed through the frequency converter to achieve precise control of the stirring speed. Automatically adjust the working state of the motor according to production needs to optimize energy consumption and improve production efficiency.

[0043] Compressor unit 75: provides compressed air for the device (the air has two uses, the first is the need of the pneumatic valve, the second is to blow air into the powder silo), and its control method includes: automatically adjusting the start and stop of the compressor to maintain the air pressure in the system stable. The air pressure is monitored by the pressure sensor to realize the automatic start and stop control of the compressor.

[0044] Material storage control cabinet 76: responsible for controlling the storage and management of material (such as cement powder, bentonite powder, etc.) storage tanks. The control method is as follows: monitor the material storage situation through the material level sensor, automatically control the feeding and discharging of materials. Linked with the data monitoring cabinet, automatically adjust the material supply according to production needs.

[0045] To further optimize the solution, the fluid supply system 4 includes a stabilizer storage tank 41 and a clean water pipeline. The stabilizer storage tank 41 is connected to the feed end of a third industrial hose pump, and the discharge end of the third industrial hose pump is connected to the stirring tank body 51. A water pump is provided on the clean water pipeline, and one end of the clean water pipeline is connected to the stirring tank body 51. The slurry storage tank 61 is connected to another clean water pipeline, and another water pump is provided on the clean water pipeline connected to the slurry storage tank 61.

[0046] A method for using a shield operation two-component slurry integrated storage and preparation and delivery system, the method is used for implementing the shield operation two-component slurry integrated storage and preparation and delivery system of the above scheme, comprising the following steps:

[0047] Step 1: transporting the material in the fluid supply system 4 to the slurry mixing system 5 for stirring;

[0048] Step 2: transport the materials in the dry powder supply system 3 to the slurry mixing system 5 for stirring;

[0049] Step 3: After the materials in the slurry mixing system 5 are stirred evenly, they are sent to the slurry storage tank 61 for temporary storage, and then the slurry to be used in the slurry storage tank 61 is injected into the gaps in the surrounding rocks.

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 on the present invention.

[0051] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. Two-component slurry integrated storage and preparation and delivery system for shield operation, characterized in that: The invention comprises a structural support component (2), a dry powder supply system (3) is installed on the top surface of the structural support component (2), the front end of the structural support component (2) is connected to the rear end of the shield machine, side platforms are installed on the left and right sides of the structural support component (2), a slurry mixing system (5), a slurry storage system (6), and an automatic control system (7) are installed on the side platforms in sequence from back to front, and a fluid supply system (4) is installed in the automatic control system (7); The discharge end of the dry powder supply system (3) is connected to the slurry mixing system (5), the discharge end of the slurry mixing system (5) is connected to the slurry storage system (6), the discharge end of the slurry storage system (6) is connected to the shield machine, the discharge end of the fluid supply system (4) is connected to the slurry mixing system (5), and the automatic control system (7) controls the amount of material delivered by the dry powder supply system (3), the fluid supply system (4), the slurry mixing system (5), and the slurry storage system (6).

2. The shield operation two-component slurry integrated storage and preparation and delivery system according to claim 1 is characterized in that: The structural support assembly (2) includes a dry powder supply system (3) including two rows of columns, a top platform is fixedly connected between the top surfaces of the two rows of columns, each row of columns is rollingly arranged on a slide rail, the front end of the column is connected to the tail of the shield machine, the dry powder supply system (3) is installed on the top platform, the rear side of the rear row of columns and the front side of the front row of columns are respectively provided with the side platforms, and each of the side platforms is respectively installed with the slurry mixing system (5), the slurry storage system (6), and the automatic control system (7) from the back to the front.

3. The shield operation two-component slurry integrated storage and preparation and delivery system according to claim 2 is characterized in that: The dry powder supply system (3) includes a montmorillonite powder storage tank (31), a cement powder storage tank (32), and a horizontal screw conveyor (34). One montmorillonite powder storage tank (31) and three cement powder storage tanks (32) form a group. One montmorillonite powder storage tank (31) in a group is connected to the three cement powder storage tanks (32) via a dust recovery container (33). The three cement powder storage tanks (32) in a group are connected to the slurry mixing system (5) on the corresponding side via a horizontal screw conveyor (34). The montmorillonite powder storage tank (31) in each group is respectively connected to one horizontal screw conveyor (34). The horizontal screw conveyor (34) on the montmorillonite powder storage tank (31) is connected to the slurry mixing system (5).

4. The shield operation two-component slurry integrated storage and preparation and delivery system according to claim 3 is characterized in that: The slurry mixing system (5) includes two stirring tank bodies (51), which are installed on the side platforms on the corresponding sides. The two stirring tank bodies (51) are arranged up and down, and the stirring tank body (51) located on the upper side is connected to the horizontal screw conveyor (34) on the corresponding side. The bottom of the stirring tank body (51) located on the upper side is connected to the stirring tank body (51) located on the lower side. The stirring tank body (51) located on the lower side is connected to the inlet end of the first industrial hose pump, and the end of the first industrial hose pump is connected to the shield machine. The stirring tank body (51) is provided with stirring blades inside, and the stirring blades are driven by a stirring driver (52). The stirring driver (52) is installed on the stirring tank body (51).

5. The shield operation two-component slurry integrated storage and preparation and delivery system according to claim 4 is characterized in that: The slurry storage system (6) comprises two slurry storage tanks (61), which are mounted on the side platforms on the corresponding sides. The two slurry storage tanks (61) are arranged up and down, the slurry storage tank (61) located at the top is connected to the outlet end of the first industrial hose pump, and the bottom of the slurry storage tank (61) located at the top is connected to the slurry storage tank (61) located at the bottom, the slurry storage tank (61) is connected to the inlet end of the second industrial hose pump (63), and the outlet end of the second industrial hose pump (63) is connected to the stirring tank body (51), and the slurry storage tank (61) is provided with a stirring blade, and the stirring blade is driven by a slurry storage motor (62), and the slurry storage motor (62) is mounted on the slurry storage tank (61).

6. The shield operation two-component slurry integrated storage and preparation and delivery system according to claim 5 is characterized in that: The automated control system (7) comprises an intelligent control station (71), the intelligent control station (71) being installed on the side platform, the fluid supply system (4) being installed in the intelligent control station (71), and the intelligent control station (71) also being installed with a main power distribution cabinet (72), a data monitoring cabinet (73), a frequency conversion control cabinet (74), a compressor unit (75), and a material storage control cabinet (76).

7. The shield operation two-component slurry integrated storage and preparation and delivery system according to claim 6 is characterized in that: The fluid supply system (4) comprises a stabilizer storage tank (41) and a clean water pipeline. The stabilizer storage tank (41) is connected to the feed end of a third industrial hose pump, and the discharge end of the third industrial hose pump is connected to the stirring tank body (51). A water pump is provided on the clean water pipeline. One end of the clean water pipeline is connected to the stirring tank body (51). The slurry storage tank (61) is connected to another clean water pipeline, and another water pump is provided on the clean water pipeline connected to the slurry storage tank (61).

8. A method for using a two-component slurry integrated storage and preparation and delivery system for shield tunneling operations, characterized in that: The method is used for implementing the shield operation two-component slurry integrated storage and preparation and delivery system described in any one of 1-7, and comprises the following steps: Step 1: transporting the material in the fluid supply system (4) to the slurry mixing system (5) for stirring; Step 2: transporting the material in the dry powder supply system (3) to the slurry mixing system (5) for stirring; Step 3: After the materials in the slurry mixing system (5) are stirred evenly, they are sent to the slurry storage tank (61) for temporary storage, and then the slurry to be used in the slurry storage tank (61) is injected into the gaps in the surrounding rocks.

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