Grouting system with controllable proportion

Abstract

The utility model relates to a proportion-controllable grouting system which comprises a bottom support, a slurry barrel is installed on the bottom support, a jet pipe is connected to the slurry barrel, the other end of the jet pipe is connected with a flow divider, two ports of the flow divider are respectively connected with a ball valve and a slurry pump through pipelines, and the ball valve is connected with the slurry pump through a pipeline. The slurry pump is connected with a motor, the output end of the slurry pump is connected with an anti-blocking filter plate through a pipeline, and the anti-blocking filter plate is arranged at the bottom of the slurry barrel; the proportion-controllable grouting system further comprises a grouting piston cylinder, a first backpressure device and a second backpressure device are installed at grout discharging ports in the left side and the right side of the grouting piston cylinder, and the other end of the first backpressure device is connected with the ball valve through a pipeline. According to the proportion-controllable grouting system, the mixing proportion of the grout is controllable by pumping and supplying the grout and adding the backpressure device in the pipeline, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting equipment, and specifically relates to a grouting system with controllable proportion. Background Technique

[0002] In underground tunnel excavation and underground construction operations, grouting technology is often required. In grouting operations, based on the consideration of grouting quality, different concentrations of slurry are often required to be grouted strictly in a certain proportion. In the current existing technology, the self-priming property of the suction pipe of the slurry with a large concentration is poor, and there is an air suction rate, resulting in an uncontrollable mixing ratio of two slurries with different concentrations. During on-site operations, the problem of uncontrollable mixing ratio is mainly solved by increasing the inner diameter of the suction pipe of the slurry with a large concentration, or relatively shortening the length of the suction pipe at the end with a large concentration, etc., to reduce the resistance of the suction pipeline on the side with a large concentration.

[0003] However, the above solutions can only adjust the mixing ratio of the slurry within a certain range, and are inconvenient to operate with a large workload. When different slurries are replaced, the original grouting equipment still needs to be adjusted again, increasing the workload of workers and reducing labor productivity. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies in the prior art such as the uncontrollable mixing ratio of the slurry and the influence on grouting quality, the utility model provides a grouting system with controllable proportion, which realizes the controllable mixing ratio of the slurry and improves work efficiency by means of pumping and supplying slurry and adding a back pressure device in the pipeline; solves the problems of a large air suction rate of the suction pipe of the slurry with a large concentration and an uncontrollable mixing ratio of the slurry.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A grouting system with controllable proportion, including a bottom bracket, a slurry bucket is installed on the bottom bracket, a jet pipe is connected to the slurry bucket, the other end of the jet pipe is installed and connected to a diverter, two ports on the diverter are respectively connected to a ball valve and a mud pump through pipelines, a motor is installed and connected to the mud pump, the output end of the mud pump is installed and connected to an anti-blocking filter plate through a pipeline, and the anti-blocking filter plate is installed at the bottom of the slurry bucket;

[0008] The grouting system with controllable proportion further includes a grouting piston cylinder, and first and second back pressure devices are installed at the slurry discharge ports on the left and right sides of the grouting piston cylinder respectively, and the other end of the first back pressure device is connected to the ball valve through a pipeline.

[0009] Further, the upper part of the slurry bucket is of a cylindrical structure, and the lower part is of an eccentric conical structure. The anti-blocking filter plate is installed at the eccentric conical port of the lower part of the slurry bucket with an eccentric conical structure.

[0010] Further, by controlling the ball valve and the diverter, the system can be switched between the pulp making and pumping and supplying functions.

[0011] Further, a control box is installed on one side of the slurry bucket. A control panel is fixed on the front of the control box, and a protection mechanism for protecting the control panel is provided on the front of the control box.

[0012] Further, the protection mechanism includes a positioning plate fixed on the front of the control box. Two limiting rods are fixed on the lower surface of the positioning plate. A limiting block is fixed at the bottom end of the limiting rod. A return spring located outside the limiting rod is fixed on the upper surface of the limiting block. The upper surface of the return spring is fixed with a protection box slidably connected outside the limiting block.

[0013] Further, a limiting hole through which the limiting rod passes is opened on the upper surface of the protection box, and the limiting rod is in clearance fit with the protection box through the limiting hole. A limiting groove for the limiting block to slide is opened inside the protection box.

[0014] Further, the protection box is in the shape of a cuboid with a hollow interior and both the upper surface and the back surface missing. A handle is fixed on the front of the protection box.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0017] The proportion-controlled grouting system consists of two major parts: pulp making and pumping and supplying. By controlling the ball valve and the diverter on the control panel of the control box, the functions of pulp making and pumping and supplying are switched;

[0018] When making pulp, the ball valve is closed, and the first backpressure device and the second backpressure device connected to the ball valve and the diverter are adjusted so that the device can be started without pressure to make pulp. The pulp making adopts the eddy current circulation method. The upper part of the slurry bucket is of a cylindrical structure, and the lower part is of an eccentric conical structure to ensure more uniform stirring of the slurry, easy cleaning, and high pulp making efficiency;

[0019] When performing pumping and slurry supply, open the ball valve, and adjust the first backpressure device and the second backpressure device connected to the diverter through the ball valve, so that the diverter must reach a certain pressure before it can be opened, and the opening pressure of the diverter should be less than the pressure set by the first backpressure device. Then start pumping and supplying slurry. In the state of pumping and supplying slurry, the piston in the grouting piston cylinder moves to suck and discharge slurry, thus solving the problems of large suction emptying rate of the suction pipe for slurry with large concentration and uncontrollable slurry mixing ratio, ensuring that slurries with different concentrations are grouted according to accurate and stable mixing ratios. At the same time, the mud pump is used not only during slurry preparation but also during pumping and slurry supply, improving the utilization rate of the equipment and having a low overall equipment occupancy rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a grouting system with controllable ratio of the present utility model;

[0021] Figure 2 is a schematic diagram of the protection mechanism of a grouting system with controllable ratio of the present utility model.

[0022] In the figure: 1, slurry bucket; 2, anti-blocking filter plate; 3, jet pipe; 4, ball valve; 5, diverter; 6, motor; 7, mud pump; 8, first backpressure device; 9, grouting piston cylinder; 10, second backpressure device; 11, bottom bracket; 12, control box; 13, control panel; 14, protection mechanism; 1401, positioning plate; 1402, limiting rod; 1403, return spring; 1404, limiting block; 1405, protection box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1, a grouting system with controllable proportion, including a bottom bracket 11, characterized in that: a slurry bucket 1 is installed on the bottom bracket 11, a jet pipe 3 is connected to the slurry bucket 1, the other end of the jet pipe 3 is installed and connected to a diverter 5, two ports on the diverter 5 are respectively connected to a ball valve 4 and a mud pump 7 through pipelines, a motor 6 is installed and connected to the mud pump 7, the output end of the mud pump 7 is installed and connected to an anti-blocking filter plate 2 through a pipeline, the anti-blocking filter plate 2 is installed at the bottom of the slurry bucket 1, and the grouting system with controllable proportion also includes a grouting piston cylinder 9. First backpressure devices 8 and second backpressure devices 10 are installed at the slurry discharge ports on the left and right sides of the grouting piston cylinder 9, and the other end of the first backpressure device 8 is connected to the ball valve 4 through a pipeline. The upper part of the slurry bucket 1 is of a cylindrical structure, and the lower part is of an eccentric conical structure. The anti-blocking filter plate 2 is installed at the eccentric conical port of the lower part of the slurry bucket 1 with an eccentric conical structure. By controlling the ball valve 4 and the diverter 5, the switching between the slurry making and pumping and feeding functions of the system can be controlled. A control box 12 is installed on one side of the slurry bucket 1, a control panel 13 is fixed on the front of the control box 12, and a protection mechanism 14 for protecting the control panel 13 is provided on the front of the control box 12. The entire system is controlled by the control box 12. The electrical components involved in the control box are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed electrical connection technology will not be elaborated in this text.

[0025] Please refer to Figure 2 , in order to prevent the control panel 13 from being collided, the protection mechanism 14 includes a positioning plate 1401 fixed on the front of the control box 12. Two limiting rods 1402 are fixed on the lower surface of the positioning plate 1401. A limiting block 1404 is fixed at the bottom end of the limiting rod 1402. A return spring 1403 located outside the limiting rod 1402 is fixed on the upper surface of the limiting block 1404. A protection box 1405 slidably connected to the outside of the limiting block 1404 is fixed on the upper surface of the return spring 1403; a limiting hole for the limiting rod 1402 to penetrate is opened on the upper surface of the protection box 1405, and the limiting rod 1402 is in clearance fit with the protection box 1405 through the limiting hole. A limiting groove for the limiting block 1404 to slide and connect is opened inside the protection box 1405; the protection box 1405 is in the shape of a cuboid with a hollow interior and the upper surface and the back surface missing, and a handle is fixed on the front of the protection box 1405.

[0026] In the above embodiments, the protection mechanism 14 protects the control panel 13 through the cooperation of the positioning plate 1401, the limiting rod 1402, the return spring 1403, the limiting block 1404 and the protection box 1405, so that it will not be impacted and no slurry will splash onto the control panel 13, thus ensuring that the control panel 13 can be used normally for a long time. At the same time, the return spring 1403 is utilized to make the protection box 1405 and the positioning plate 1401 fit together to complete the closure.

[0027] The working principle of the above embodiments is as follows:

[0028] The proportion-controlled grouting system consists of two major parts: pulp making and pumping pulp supply. The control valve 4 and the diverter 5 are controlled through the control panel 13 on the control box 12 to switch the functions of pulp making and pumping pulp supply;

[0029] When making pulp, the control valve 4 is closed, and the first backpressure device 8 and the second backpressure device 10 connected through the control valve 4 and the diverter 5 are adjusted so that the device can be started without pressure for pulp making. The pulp making adopts the eddy current circulation method. The upper part of the slurry tank 1 is a cylindrical structure, and the lower part is an eccentric conical structure to ensure more uniform slurry stirring, easy cleaning, and high pulp making efficiency;

[0030] When pumping pulp supply, the control valve 4 is opened, and the first backpressure device 8 and the second backpressure device 10 connected through the control valve 4 and the diverter 5 are adjusted so that the diverter 5 must reach a certain pressure to be opened, and the opening pressure of the diverter 5 should be less than the pressure set by the first backpressure device 8. Then, the pumping pulp supply starts. In the state of pumping pulp supply, the piston in the grouting piston cylinder 9 moves to suck and discharge the slurry, solving the problems of large suction air rate of the suction pipe for slurry with large concentration and uncontrollable slurry mixing ratio, ensuring that slurries with different concentrations are grouted according to accurate and stable mixing ratios. At the same time, the mud pump 7 is not only used during pulp making but also during pumping pulp supply, improving the utilization rate of the equipment and reducing the overall equipment occupancy rate.

[0031] During the above pulping or pumping pulp supply process, when it is necessary to use the control panel 13, grasp the handle on the front of the protective box 1405 and pull it downwards. While the protective box 1405 moves downwards, the return spring 1403 is compressed, and the limit rod 1402 and the limit block 1404 slide inside the protective box 1405. When the return spring 1403 is compressed to the shortest, the control panel 13 is completely exposed and can be used. The protection mechanism 14 protects the control panel 13 through the cooperation of the positioning plate 1401, the limit rod 1402, the return spring 1403, the limit block 1404 and the protective box 1405, so that it will not be impacted and no slurry will splash onto the control panel 13, thus ensuring that the control panel 13 can be used normally for a long time. At the same time, the resilience of the return spring 1403 is utilized to make the protective box 1405 and the positioning plate 1401 fit together to complete the enclosure.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grouting system with controllable proportion, including a bottom bracket (11), Characterized in that: A slurry bucket (1) is installed on the bottom bracket (11), a jet pipe (3) is connected to the slurry bucket (1), the other end of the jet pipe (3) is installed and connected with a diverter (5), two ports on the diverter (5) are respectively connected with a ball valve (4) and a mud pump (7) through pipelines, a motor (6) is installed and connected to the mud pump (7), the output end of the mud pump (7) is installed and connected with an anti-blocking filter plate (2) through a pipeline, and the anti-blocking filter plate (2) is installed at the bottom of the slurry bucket (1); This grouting system with controllable proportion also includes a grouting piston cylinder (9), and first back-pressure devices (8) and second back-pressure devices (10) are installed at the slurry discharge ports on the left and right sides of the grouting piston cylinder (9), and the other end of the first back-pressure device (8) is connected to the ball valve (4) through a pipeline.

2. A grouting system with controllable proportion according to claim 1, Characterized in that: The upper part of the slurry bucket (1) is of a cylindrical structure, and the lower part is of an eccentric conical structure, and the anti-blocking filter plate (2) is installed at the eccentric conical port of the lower part of the slurry bucket (1) with an eccentric conical structure.

3. A grouting system with controllable proportion according to claim 1, Characterized in that: By controlling the ball valve (4) and the diverter (5), the switching of the functions of slurry making and pumping and supplying slurry of the system can be controlled.

4. A grouting system with controllable proportion according to claim 1, Characterized in that: A control box (12) is installed on one side of the slurry bucket (1), a control panel (13) is fixed on the front of the control box (12), and a protection mechanism (14) for protecting the control panel (13) is arranged on the front of the control box (12).

5. A grouting system with controllable proportion according to claim 4, Characterized in that: The protection mechanism (14) includes a positioning plate (1401) fixed on the front of the control box (12), two limiting rods (1402) are fixed on the lower surface of the positioning plate (1401), a limiting block (1404) is fixed at the bottom end of the limiting rod (1402), a return spring (1403) located outside the limiting rod (1402) is fixed on the upper surface of the limiting block (1404), and a protection box (1405) slidably connected outside the limiting block (1404) is fixed on the upper surface of the return spring (1403).

6. A grouting system with controllable proportion according to claim 5, Characterized in that: The upper surface of the protection box (1405) is provided with a limiting hole for the limiting rod (1402) to pass through, and the limiting rod (1402) is in clearance fit with the protection box (1405) through the limiting hole, and a limiting groove for the limiting block (1404) to slidably connect is arranged inside the protection box (1405).

7. A grouting system with controllable proportion according to claim 6, Characterized in that: The protective box (1405) is in the shape of a cuboid with a hollow interior and the upper surface and the back surface missing, and a handle is fixed to the front of the protective box (1405).

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