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The PZ-L continuous negative pressure automatic slag-discharging water drainer adopts a dual-tank structure. Utilizing the height difference of the water inlet valve and under the secondary regulation of the water distribution system, it achieves continuous water storage and drainage functions. It effectively solves the problem of water accumulation and blockage in gas extraction pipelines caused by intermittent drainage.

In mine gas extraction pipeline systems, whether in negative or positive pressure pipelines, there is often a large amount of accumulated water. This water flows through the pipelines and collects at the lowest points, causing a reduction in the pipeline's cross-section or blockage, making it difficult or impossible for gas to pass through. This disrupts or even damages the normal operation of the extraction system. Water blockage in boreholes reduces the extraction negative pressure and blocks the gas pathway, making it difficult or impossible to extract gas from the coal seam, severely affecting the amount of extracted gas and reducing extraction efficiency.

Structure of the Continuous Negative Pressure Automatic Slag-Discharging Water Drainer

The continuous negative pressure automatic water drainer mainly consists of a water distribution system, water accumulation tank A, water accumulation tank B, ventilation valve, float assembly, inlet valve, drain valve, negative pressure balance valve, negative pressure balance hose, and water accumulation hose, among other components.