Dispositivo de Amostragem Rápida de Ponto Fixo para Furos Profundos em Mina de Carvão, Altamente Adaptável, Suporta Dispositivos de Amostragem Rápida Sdq Personalizados

The deep hole fixed-point rapid sampling device is based on the dual power principle of "positive pressure displacement + negative pressure injection". The special drill bit is designed as an injection core, the sampling hole is designed to fit closely with the hollow of the spiral drill rod, and the special sampling tail braid is designed to be three-way type. The purpose is to allow air to enter from the side and sample from the front. During normal construction and drilling, connecting the drilling tail braid is the same as normal drilling. When drilling to the predetermined position, only the special sampling tail braid needs to be replaced, and side air pressure and front sampling are performed. At the same time, the device slowly drills in the process, ejects the drill cuttings, and conducts on-site desorption measurement.

Product performance

1. Gas content determination process: sampling of drilling cuttings during underground drilling construction and desorption;

2. Different from traditional air exhaust sampling, it can realize fixed-point sampling without removing the drill rod, sampling as drilling progresses, and is not affected by drill cuttings on the borehole wall, so the sampling effect is better.

3. Rapid fixed-point sampling can be achieved at any point within 100m of the coal seam within 5 minutes.

Coal Mine Deep Hole Fixed-Point Rapid Sampling Device Highly Adaptable Supports Customized SDQ Rapid Sampling Device