The invention discloses a preparation device for a
magnetization-based anatonosis
wetting agent for the water injection of a
coal seam. The preparation device comprises a magnetizer body, an outer bracket (8) and a
magnetization generation
barrel (1), wherein the magnetizer body comprises a motor (2), a revolving shaft (3), a
magnet revolving bracket (4), external detachable permanent magnets (5)and agitating vanes (6); the upper shaft end of the revolving shaft (3) is connected with a rotating shaft of the motor (2), and passes through the
magnet revolving bracket (4) and the agitating vanes(6) in sequence; the revolving bracket is fixedly provided with one pair of the permanent magnets (5); the motor (2) drives the revolving shaft (3) to rotate, and drives the
magnet revolving bracket(4) and the external permanent magnets (5) to form a circular revolving
magnetic field; fluid is horizontally
cut by revolving magnetic induction lines to generate favorable synergistic
coupling effect with the
magnetic field; a molecular structure is changed; the activity and the
osmosis performance is improved; the agitating vanes (6) are driven by the revolving shaft (3) to stir the fluid to form a vortex; the
magnetization process is accelerated. The preparation device is high in magnetization efficiency and simple to operate; the
permeation and
wetting efficacy of the prepared and obtained magnetization-based anatonosis
wetting agent are observably ameliorated, and the water injection efficiency of the
coal seam is effectively improved.