Slurry stopping and plugging device

Through intelligent closed-loop control with multi-parameter coupling, the grouting process can be dynamically adjusted in real time, which solves the problems of pressure control lag and sealing failure in traditional grouting technology, improves the accuracy and reliability of the grouting process, and is applicable to fields such as geotechnical engineering, mining, tunnel support and geological disaster prevention.

CN120990528BActive Publication Date: 2026-07-21SINOHYDRO BUREAU 6 CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINOHYDRO BUREAU 6 CO LTD
Filing Date
2025-09-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing grouting and sealing technologies suffer from sealing failure and grout waste due to lagging and crude pressure control. They lack synchronous and accurate monitoring and linkage analysis of the pressure state before and after the sealing section, and cannot respond to changes in formation conditions in real time, resulting in unstable grouting process and low efficiency.

Method used

The system employs a multi-parameter coupled intelligent closed-loop control system. By combining front and rear pressure sensors, flow sensors, and a controller, it monitors and analyzes the grouting status in real time, generating precise control commands, including grouting pump pressure regulation and electronic valve opening control, to achieve coordinated management of grouting flow and return flow.

Benefits of technology

It improves the accuracy and reliability of the grouting process, ensures stability and controllability under complex geological conditions, reduces the risk of leakage, and improves the success rate and safety of grouting operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120990528B_ABST
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Abstract

The application discloses a grout stopping and plugging device and belongs to the technical field of grouting equipment. The device comprises a grout stopping and plugging module, a grouting control module and a monitoring control module. The front and rear ends of the grout stopping plug body of the grout stopping and plugging module are respectively provided with pressure conduction interfaces. The grouting pump and the first electric control valve of the grouting control module are connected in series in the grouting pipeline, and the second electric control valve is arranged in the return grouting pipeline. The front and rear pressure sensors of the monitoring control module are coupled to the corresponding interfaces, and the flow sensor is arranged in the grouting pipeline. The three are connected to the controller. The controller is provided with a pressure differential dynamic analysis algorithm, which can calculate the front and rear pressure difference in real time, and generate signals to independently control the working pressure of the grouting pump, the grouting flow of the first electric control valve and the return grouting flow of the second electric control valve in combination with the flow data. The application solves the problems of plugging failure and grout waste caused by pressure control lag and extensive use in the prior art, and significantly improves the accuracy, reliability and automation level of the grouting process through intelligent closed-loop control of multiple parameters.
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