Liftable guide pipe for coal mine overlying strata separation layer grouting settlement reduction
By introducing a motor-driven gear system and a mixing plate into the conduit, the problems of uneven slurry mixing and solid particle adhesion were solved, improving the efficiency and reliability of grouting for coal mine overburden separation.
CN223647785UActive Publication Date: 2025-12-09HEFEI DESIGN & RES INST LLC OF COAL IND
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Patent Information
- Application Number
- CN202520310656.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Technical Problem
The existing coal mine overburden separation grouting pipes lack a mixing device, resulting in uneven mixing of grout components and solid particles adhering to the inner wall of the pipe, which affects grouting efficiency.
Method used
A gear system and a mixing plate driven by a motor were designed. The gear rotation drives the mixing plate to mix the slurry, and a scraper is equipped to clean the inner wall of the slurry, ensuring the uniformity of the slurry and the smooth flow of the conduit.
Benefits of technology
This method achieves uniform mixing of grout components, avoids solid particle adhesion, improves grouting efficiency and system stability, and reduces the risk of conduit blockage.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the technical field of coal mines, in particular to a liftable guide pipe for coal mine overlying strata separation layer grouting settlement reduction, which comprises a guide pipe, the guide pipe is connected with a first connecting pipe and a second connecting pipe in a penetrating manner, the first connecting pipe and the second connecting pipe are rotatably connected with a round block, and two ends of the side of the round block are connected with a plurality of groups of sliding blocks. An inner gear is fixedly connected to the inner wall of the circular block and is in meshed connection with three sets of gears, a motor is connected to the top end of one set of gears, a motor fixing frame is arranged at the top end of the motor, and the top end of the motor fixing frame is fixedly connected to the top end of the interior of the first connecting pipe; by means of the electric rotating table, the winding wheel, the rope and the scraping plate, automatic cleaning of the inner wall of the guide pipe is achieved, blocking and scaling are effectively prevented, the service life of equipment is prolonged, the grouting effect is optimized, and maintenance work is simplified.
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