Integral hose plug-in-free type gas hole packer
The utility model discloses an integral hose plug-free type gas hole packer. The hole packer comprises a built-in double-hole drainage hose, a front water-permeable slurry-retaining cloth bag, a rear water-permeable slurry-retaining cloth bag and an anti-blocking end, a bag grouting pipe and a middl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses an integral hose plug-free type gas hole packer. The hole packer comprises a built-in double-hole drainage hose, a front water-permeable slurry-retaining cloth bag, a rear water-permeable slurry-retaining cloth bag and an anti-blocking end, a bag grouting pipe and a middle section grouting pipe are arranged in the built-in double-hole drainage hose; the built-in double-hole drainage hose is divided into a rear cloth bag grouting section, a front cloth bag grouting section, a middle blocking section, a drainage section and a roadway breaking area. And water-permeable grout-blocking holes are distributed on the front water-permeable grout-retaining cloth bag and the rear water-permeable grout-retaining cloth bag. The total length and the segmentation length of the drainage hose are designed according to the position and the distance between a roadway and an outburst coal seam, an external grouting pipeline is not needed, the grouting pipeline is directly arranged in the drainage pipe |
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