Device and method for geo-electric extraction under water layer coverage

A device for geo-electric extraction under water layer coverage, comprising auxiliary tubes, outer casings, main tubes, mud extractors, encapsulated extraction electrodes and a fixing ferrule assembly, wherein

• the auxiliary tubes each comprise a first end open and a second end closed;
• the outer casings each comprise a first end open, and a second end detachably connected to a top cover provided with a central hole;
• and an inner diameter of each of the outer casings is larger than an outer diameter of each of the auxiliary tubes;
• an outer diameter of each of the main tubes is smaller than the inner diameter of each of the outer casings;
• the mud extractors each comprise an inner rod, an outer rod and a bottom plate;
• wherein
• the outer rod is rotatably sleeved outside the inner rod;
• the inner rod comprises one a first end provided with a dredging wheel and a second end provided with a handle;
• the bottom plate comprises a first bottom plate and a second bottom plate, wherein the first bottom plate and the second bottom plate are arranged up and down;
• the first bottom plate and the second bottom plate each are provided with a plurality of mud holes, and the plurality of mud holes of the first bottom plate are staggered with the plurality of mud holes of the second bottom plate;
• the first bottom plate and the second bottom plate are fitted and arranged adjacent to one end of the dredging wheel;
• the first bottom plate is fixedly connected to the outer rod, and the second bottom plate is fixedly connected to the inner rod;
• and
• a diameter of the dredging wheel, a diameter of the first bottom plate and a diameter of the second bottom plate are adapted to the inner diameter of each of the outer casings;
• the encapsulated extraction electrodes each comprise a housing;
• the housing comprises an upper part and a lower part;
• the upper part of the housing is a closed structure, and the lower part of the housing is an open structure;
• a bottom end of the lower part of the housing is provided with a tray;
• and the tray is connected to the upper part of the housing through posts;
• a liquid storage bottle for storing an extraction liquid is provided in the upper part of the housing;
• a conventional electrode is provided between the tray and the upper part of the housing;
• a drip tube with a valve is provided between the liquid storage bottle and the conventional electrode;
• and the drip tube delivers the extraction liquid in the liquid storage bottle to the conventional electrode;
• and
• the fixing ferrule assembly comprises a power supply box and two ferrules;
• the two ferrules are respectively provided at two ends of the power supply box;
• the two ferrules each are connected to the power supply box at an adjustable distance;
• and the two ferrules each are matched with a lifting rod.