Slotting type static mixing tube

The utility model relates to a slotting type static mixing tube. A static mixer is widely applied to industries such as water treatment industries, chemical industries, oil industries and environmental protection industries. The slotting type static mixing tube comprises a tube body and a spiral blade, wherein the spiral blade is arranged in the tube body, and the spiral blade and the tube body are coaxially arranged. The spiral blade is formed by twisting a rectangle metal sheet along a center line, the width H of the rectangle metal sheet is the same with the diameter of the tube body, the torsional angle is 180 degrees, and a left spiral blade and a right spiral blade are arranged in the tube in a staggering way with 90 degrees. The rectangle metal sheet is provided with slits with the width of h symmetrically along the center line, and the ratio of h to H is equal to 0.1-0.6. On the basis of the traditional mixing tube, the spiral blade is divided into two, a gap is left between the two spiral blades, and